The Tree Goanna – Lace Monitor Lizard

If you’ve ever spent time camping in the Australian bush, there’s a good chance you’ve crossed paths with one of nature’s most impressive reptiles — the tree goanna, also known as the lace monitor lizard. With its prehistoric silhouette, hypnotic markings, and effortless agility, this remarkable creature is one of the true highlights of any bush camping experience in Queensland.

At Murphys Creek Escape, nestled in the heart of the Lockyer Valley, encounters with these magnificent lizards are a treasured part of what makes a stay here so memorable — whether you’re pitching a tent under the stars or settling into one of our comfortable accommodation options.

The Tree Goanna (Lace Monitor Lizard)

Overview of the Species

The tree goanna, scientifically known as Varanus varius, is one of Australia’s largest and most visually striking reptiles. A member of the monitor lizard family (Varanidae), the lace monitor is a true giant of the Australian bushland — powerful, curious, and surprisingly graceful. Found throughout much of eastern Australia, this species has captivated naturalists, wildlife photographers, and casual campers alike for generations.

Unlike many other reptiles that blend quietly into the background, the lace monitor commands attention. Its sheer size alone is enough to stop most visitors in their tracks, and its boldly patterned skin only adds to its visual drama. Whether spotted foraging across a forest floor, scaling a eucalyptus trunk, or basking on a sun-warmed rock, the lace monitor is an encounter that stays with you long after you’ve returned home.

Why It’s Iconic in Australian Bushland

The lace monitor holds a special place in the ecology and cultural identity of the Australian bush. As one of the apex reptilian predators in its environment, it plays a vital role in keeping ecosystems in balance. Indigenous Australian communities have long regarded goannas as significant animals, featuring them in Dreamtime stories, artwork, and ceremonial life.

For today’s campers and nature lovers exploring areas like the Lockyer Valley and the ranges near Toowoomba, spotting a lace monitor in the wild is often described as a bucket-list moment. They are simultaneously ancient-looking and strikingly alive — a living connection to the age of reptiles that once dominated the earth.

What Is a Tree Goanna?

Scientific Name and Classification

The species name varius is Latin for “diverse” or “variegated,” a fitting reference to the animal’s complex and varied patterning. Within the genus Varanus, which contains over 80 species of monitor lizards worldwide, Varanus varius is the second-largest lizard native to Australia, surpassed only by the perentie (Varanus giganteus) of the arid interior.

Common Names and Terminology

Depending on where you are in Australia, this remarkable lizard goes by several names:

• Tree Goanna — the most widely used common name, referencing its excellent climbing ability
• Lace Monitor — a name derived from its distinctive lacy or lacework-like scale patterns
• Lace Goanna — a regional variation used in parts of Queensland and New South Wales
• Goanna — the broad Australian term applied loosely to all large monitor lizards; thought to derive from “iguana,” which early European settlers mistakenly applied to these lizards

The word “goanna” itself is deeply embedded in Australian vernacular, appearing in idioms, folklore, and bush poetry. Saying you’ve seen a goanna up close at the campsite is a guaranteed conversation starter at any campfire gathering.

Physical Characteristics

Size, Colour, and Markings

The lace monitor is a large and imposing reptile. Here’s a quick reference guide to its physical characteristics:

The colouration of lace monitors is one of their most striking features. Their base colour is typically a deep blue-black or charcoal grey, overlaid with a complex pattern of cream, yellow, or pale blue spots and banding. This intricate lacework of markings gives the species its most well-known common name and makes each individual lizard subtly unique.

There is a distinct colour variation found in certain parts of New South Wales known as the Bell’s phase lace monitor. These individuals display a banded pattern of broader black and yellow stripes, giving them an even more dramatic appearance.

Juveniles tend to be more vividly patterned than adults, with the markings becoming somewhat muted as the animals age and grow.

Distinct Features and Adaptations

Lace monitors are remarkably well-adapted to their environment:

• Forked tongue: Like all monitor lizards, the lace monitor uses its long, forked tongue to “smell” the air, picking up chemical signals from prey, predators, and mates. This is called Jacobson’s organ chemoreception.
• Sharp, curved claws: Powerful claws make the lace monitor an extraordinary climber, allowing it to scale smooth-barked eucalyptus trees with ease.
• Powerful tail: The muscular tail serves both as a counterbalance when climbing and as a formidable defensive weapon — a tail whip from a large lace monitor can cause significant injury.
• Sharp, serrated teeth: These teeth are designed for gripping and tearing prey, and while not venomous in the traditional sense, their saliva contains anticoagulant compounds.
• Strong legs: Muscular limbs allow the lace monitor to run rapidly on open ground when necessary.
• Keen eyesight: Lace monitors have well-developed eyes that can detect movement at considerable distances.

Habitat and Distribution

Natural Habitats in Eastern Australia

Lace monitors are found across a broad sweep of eastern Australia, from far north Queensland down through New South Wales and into Victoria. They are also present on some offshore islands. Their range is centred on timbered areas east of the Great Dividing Range, though they do venture into drier inland regions where suitable habitat exists.

Within this broad range, the Lockyer Valley and the ranges surrounding Murphy Creek represent ideal lace monitor territory. The area’s mix of dry sclerophyll forest, creek-side vegetation, and rocky escarpments provides everything these lizards need to thrive.

Preferred Environments and Territory Range

Lace monitors are highly adaptable and can be found in a variety of environments, including:

• Dry and wet sclerophyll forests — the quintessential Australian bushland environment, rich in eucalypts and understorey plants
• Rainforest margins — particularly in Queensland, where lace monitors venture into wetter, lusher environments
• Coastal heathlands — common in areas along the eastern seaboard
• Granite outcrops and rocky ranges — providing warm basking sites and shelter
• Riparian zones — creek banks and waterways where food sources are abundant

Individual lace monitors hold large home ranges, with some males ranging over 20 to 30 kilometres of territory. They are known to return to the same areas and even the same trees year after year, suggesting a strong familiarity with their local landscape.

Diet and Feeding Habits

Typical Prey and Foraging Behaviour

Lace monitors are highly opportunistic feeders with a broad and varied diet. They are active hunters and scavengers, using their excellent sense of smell to locate food across considerable distances. Their diet includes:

Foraging lace monitors methodically work through an area, tongue-flicking constantly as they probe leaf litter, rock crevices, and tree hollows. They are capable of excavating the eggs of both reptiles and ground-nesting birds with impressive efficiency.

One of the most fascinating foraging behaviours of the lace monitor is its ability to locate and raid termite mounds to access reptile eggs laid within. The female lace monitor has co-evolved with termites to use their mounds as natural incubators for her own eggs — and other goannas know this, making active termite mounds well worth investigating.

Role as a Predator and Scavenger

The lace monitor is both an active predator and a highly effective scavenger. Its keen olfactory senses can detect carrion from several kilometres away, and it will readily consume dead animals it encounters. This scavenging behaviour plays a genuinely important role in the ecosystem, as it helps break down and recycle nutrients from carcasses.

As a predator, the lace monitor helps regulate populations of small mammals, birds, and reptiles. In areas where introduced species such as rabbits and rats are present, lace monitors may provide some natural population control.

Behaviour and Lifestyle

Climbing and Arboreal Behaviour

One of the most distinctive and impressive behaviours of the lace monitor is its ability to climb. When threatened, a lace monitor’s first instinct is often to make a rapid dash for the nearest tree and ascend it with astonishing speed. Their long claws dig into bark with ease, and they can reach the upper canopy of tall eucalypts within seconds.

This arboreal tendency is what sets the tree goanna apart from many other large monitor species and earns it its most popular common name. Juveniles in particular spend a great deal of time in trees, where they are safer from ground-based predators such as dingoes and quolls.

Lace monitors also use tree hollows as overnight shelters and refuges during cold weather, and females sometimes use large hollow logs or tree bases as nesting sites.

Daily Activity Patterns

Lace monitors are diurnal, meaning they are active during the day and rest at night. Their daily routine is closely tied to temperature, as they are ectothermic (cold-blooded) and rely on external heat sources to regulate their body temperature.

A typical lace monitor day looks something like this:

1. Morning basking — emerging from overnight shelter to warm up in early morning sunlight
2. Peak activity — mid-morning to early afternoon is when lace monitors are most active, foraging and exploring
3. Midday shelter — on very hot days, they may seek shade during the hottest part of the afternoon
4. Late afternoon activity — a second burst of activity in the cooler late afternoon
5. Overnight retreat — returning to a tree hollow, dense vegetation, or rocky crevice for the night

During winter, lace monitors in cooler southern parts of their range may become relatively inactive, though they are not true hibernators. In Queensland’s warmer climate, they tend to remain active year-round.

Role in the Ecosystem

Importance in the Food Web

Lace monitors occupy a crucial position in Australian bush ecosystems, functioning as both predator and prey. As predators, they help regulate populations of smaller animals, contributing to the balance of the food web. As large reptiles, they are also prey for wedge-tailed eagles, large pythons, and dingoes — particularly when juveniles or injured.

Their role in consuming carrion places them firmly in the category of nature’s clean-up crew, alongside ravens and other scavengers. Without these animals, carcasses would decompose far more slowly, increasing disease risk and slowing the return of nutrients to the soil.

Environmental Benefits

Beyond their role in the food web, lace monitors provide several broader environmental benefits:

• Seed dispersal — though primarily carnivorous, lace monitors occasionally consume fruit and may disperse seeds
• Nutrient cycling — their scavenging activity accelerates the breakdown and recycling of organic matter
• Population regulation — controlling numbers of invasive and native species that could otherwise become overabundant
• Termite mound ecology — their interaction with termite mounds supports the structural integrity of mound communities and contributes to the complex ecology of these important structures

Conservation and Threats

Current Conservation Status

The lace monitor is currently listed as Least Concern on the IUCN Red List, reflecting the fact that it remains relatively widespread and abundant across much of its range. In Queensland and New South Wales, the species is protected under state wildlife legislation, making it illegal to harm, capture, or keep a lace monitor without appropriate permits.

While the species is not considered threatened at the national level, local populations in some areas have declined, and the cumulative effects of various threats merit ongoing attention and monitoring.

Human Impact and Habitat Loss

Despite their robust conservation status, lace monitors face a number of significant threats driven by human activity:

• Habitat clearing — land clearing for agriculture, urban development, and infrastructure removes the forested areas lace monitors depend on
• Road mortality — vehicles are a major cause of lace monitor deaths, particularly as roads cut through bush habitats
• Baiting programs — some lace monitors are killed as bycatch in poison baiting programs targeting foxes and wild dogs
• Domestic dog attacks — lace monitors that venture near homes and campgrounds can be killed by unrestrained dogs
• Collection from the wild — illegal collection for the exotic pet trade remains a concern
• Introduced predators — feral cats and foxes prey on juvenile lace monitors and their eggs

The good news is that lace monitors show a degree of resilience and adaptability. Where habitat remains intact and human impacts are managed, populations can thrive — as demonstrated by the healthy population of lace monitors around the Murphy Creek area of the Lockyer Valley.

Safety and Respectful Wildlife Viewing

What to Do If You Encounter a Lace Monitor

Encountering a lace monitor at your campsite or on the trail is genuinely exciting, but it’s important to handle the situation responsibly — for your safety and theirs. Here’s what to do:

• Stay calm and still — sudden movements may startle the lizard, causing it to flee or, if cornered, become defensive
• Keep a respectful distance — maintain at least 2 to 3 metres of space between yourself and the lizard
• Do not attempt to touch or handle the lizard — lace monitors have sharp claws, powerful tails, and a bite that, while not venomous, can cause serious lacerations and introduce bacteria
• Do not corner or trap the animal — a cornered lace monitor will defend itself; always ensure it has a clear escape route
• Keep children and pets close — supervise children and keep dogs on leash to prevent unwanted interactions
• Enjoy the moment from a distance — watch quietly and appreciate the privilege of observing this magnificent animal in the wild

If a lace monitor enters your campsite or shows unusual interest in your food or belongings, calmly and slowly remove food items and the lizard will generally move on of its own accord.

Responsible Wildlife Interaction Tips

Responsible wildlife viewing is something the team at Murphys Creek Escape feels strongly about. Keeping our local wildlife healthy and wild is essential to maintaining the magic of this place. Here are some tips to ensure your interactions with lace monitors (and all other wildlife) are positive:

Feeding wildlife, even with good intentions, is one of the most harmful things a visitor can do. A lace monitor that associates campsites with food becomes bolder and more dependent on human food sources, which is detrimental to its health and can create safety issues for guests. 

Spotting Lace Monitors at Murphys Creek Escape

Where They Are Commonly Seen

Murphys Creek Escape sits in a beautiful stretch of the Lockyer Valley, surrounded by the kind of dry sclerophyll bush and creek-side vegetation that lace monitors absolutely love. Guests who keep their eyes open are regularly treated to sightings of these impressive lizards throughout the property and its surrounds.

Some of the most reliable spots for lace monitor sightings around the park include:

• Along the creek banks and waterways — lace monitors patrol these areas in search of frogs, fish, eggs, and other food
• Near rocky outcrops and fallen logs — favourite basking and sheltering sites
• Around the edges of the campground — lace monitors are curious and will investigate the margins of campsites, particularly if they detect the scent of food
• On walking trails through the bush — encounters on the trail are common, especially in the warmer months
• In mature eucalyptus trees — look up as well as around you; lace monitors can be surprisingly well-camouflaged up in the canopy

If you’re keen to explore the full diversity of reptile life at Murphy Creek, be sure to check out our dedicated page on the reptiles of Murphy Creek in the Lockyer Valley — you might be surprised just how many species call this area home.

Best Times to Observe Them

Timing your wildlife watching can make a significant difference to your chances of a sighting. For lace monitors specifically:

• Season: Spring (September to November) and early summer (December) are peak activity times, when lace monitors are most energetic and most frequently on the move. Mating season in spring means males are particularly active as they search for females.
• Time of day: Mid-morning to early afternoon (roughly 9 AM to 2 PM) on warm, sunny days offers the best chance of an encounter. Lace monitors are out and active once the sun has warmed things up.
• Weather: Clear, warm to hot days are ideal. Lace monitors become far less active during prolonged cold or wet weather.
• Avoid disturbance: Move quietly through the bush and resist the urge to use your phone speaker or play music while walking trails — you’ll see far more wildlife if you’re quiet and attentive.

Whether you’re staying in one of our accommodation options or settling in for a night under the stars at our bush camping area, the proximity to natural bushland at Murphys Creek Escape gives you a genuine advantage when it comes to wildlife encounters.

Fun and Fascinating Facts

Unique Traits

The lace monitor is full of surprises. Here are some of the traits that make this lizard truly one of a kind:

• Bipedal stance: When threatened or curious, lace monitors sometimes rear up on their hind legs and tail to get a better view of their surroundings or to appear more imposing. Seeing a large lace monitor standing upright is an unforgettable sight.
• Temperature-dependent sex determination: Like many reptiles, the sex of lace monitor hatchlings is determined by the temperature at which the eggs are incubated, rather than by chromosomes.
• Self-regulation via running: Lace monitors can breathe while running — something that sets them and other monitor lizards apart from many other reptile families. Most lizards cannot breathe and run at the same time due to the way their body wall muscles work.
• Forked tongue use: Their tongue is not just for tasting — it’s a highly sophisticated sensory organ. Each fork picks up chemical information independently, allowing the lizard to determine the direction from which a scent is coming.

Lesser-Known Facts

Beyond the impressive basics, there are some truly fascinating lesser-known facts about lace monitors:

• Lace monitor females use active termite mounds as incubators for their eggs. The mound maintains a stable, warm temperature that is ideal for egg development. The female will return to the mound when it’s time for the eggs to hatch.
• Lace monitors have been recorded swimming confidently across rivers and even coastal inlets, demonstrating their adaptability.
• Young lace monitors are preyed upon by large birds of prey, large pythons, and even other goannas.
• Lace monitors are remarkably long-lived for reptiles, with some individuals in the wild potentially living beyond 40 years.
• Despite their fierce appearance, lace monitors are generally not aggressive towards humans unless cornered, harassed, or deliberately provoked.
• A large male lace monitor defending its territory will engage in combat with rival males, rearing up on hind legs and wrestling in a dramatic display of reptilian strength.

FAQs About the Tree Goanna

Are Lace Monitors Dangerous?

Lace monitors are wild animals and should always be treated with respect and caution. However, they are not inherently aggressive towards humans. In most encounters, a lace monitor will choose to move away, climb a tree, or stand its ground defensively rather than attack.

The genuine risks come when:

• A lace monitor is cornered with no escape route
• A person attempts to touch or handle the animal
• A lace monitor has become bold through being fed by humans
• Pets or children make rapid, unpredictable movements towards the lizard

Their claws are sharp and can cause deep lacerations, and their bite — while not venomous — is powerful and can introduce harmful bacteria. Provided you keep a respectful distance and don’t attempt to handle them, lace monitors pose minimal risk to campsite visitors.

What Should You Do If One Approaches?

It’s not unheard of for a confident lace monitor to approach a campsite, particularly if food smells are in the air. If this happens:

1. Stay calm — don’t panic or make sudden movements
2. Stand your ground or move slowly away — running can trigger a chase response
3. Remove food from the area — pack food away in sealed containers
4. Do not attempt to shoo it away aggressively — this may provoke a defensive response
5. Give it time and space — most lace monitors will move on once they establish there’s no easy food available
6. Alert campsite staff if the animal is behaving unusually or appears injured

How Big Can a Lace Monitor Grow?

The lace monitor is the second-largest lizard in Australia and one of the largest lizards on earth. Adult males are generally larger than females. Most adults reach between 1.5 and 2 metres in total length, with some exceptionally large individuals recorded at just over 2.1 metres. Weight can range from around 10 kilograms for average adults to as much as 20 kilograms for very large males.

To put that in perspective, a large lace monitor is about the length of a standard sofa. Standing beside one in the bush is genuinely one of the great wildlife experiences Australia has to offer.

Lace Monitors and the Magic of Bush Camping at Murphys Creek Escape

There’s something that shifts inside you the first time you come face to face with a lace monitor in the wild. It might be the sheer scale of the animal, the intelligence behind those amber eyes, or simply the thrill of knowing you’re sharing space with one of the bush’s true original inhabitants. Whatever it is, it’s the kind of moment that turns a camping trip into a story you’ll tell for years.

At Murphys Creek Escape, these moments are part of everyday life. Our property in the Lockyer Valley provides a natural habitat that supports not just lace monitors but an extraordinary diversity of native wildlife — from wallabies and echidnas to an impressive array of bird life and reptiles. Staying here means stepping into the heart of the Australian bush, where nature isn’t something you visit on a day trip; it’s something you wake up to every morning and fall asleep to every night.

Whether you opt for the full immersion of our bush camping experience, with nothing between you and the stars but a canvas tent, or prefer the comfort of powered sites and facilities, every stay at Murphy Creek brings you close to the landscape and creatures that make this corner of Queensland so special.

Our reptile life alone is worth the trip. From the lace monitor to a fascinating range of other species, the Lockyer Valley is a genuine hotspot for reptile diversity. Our detailed guide to the reptiles of Murphy Creek in the Lockyer Valley will help you know what to look for and where to find them during your stay.

If you’re planning a camping trip in the Lockyer Valley, a getaway from Brisbane, or simply looking for a place where the bush feels alive and the wildlife is genuinely wild, we’d love to welcome you to Murphys Creek Escape. Browse our full range of accommodation options and rates and start planning your visit today. Book directly through our website to secure your preferred dates — and keep your eyes open on that first morning walk. You never know who might be watching from the trees.

Related Articles: The Eastern Blue-tongued Lizard (Tiliqua scincoides) | The Shingleback (Tiliqua rugosa) | The Land Mullet (Bellatorias major)

Jared Jeffery

Jared Jeffery, the digital marketing specialist at Murphys Creek Escape, is a seasoned professional in the field of SEO-driven marketing. With over 10+ years of experience, he possesses a well-rounded background in the digital realm. Throughout his career, Jared has worked in agencies specializing in Travel, Finance, and Event Planning, lending his expertise to major projects involving prominent hotel chains. In addition, he has contributed his writing skills to the creation of numerous articles spanning across a wide range of industries. With his wealth of knowledge and extensive experience, Jared brings a valuable skill set to the table.