Koalas: where and how to see them

First, the correction: koalas are not bears

It's worth getting out of the way early, because it comes up constantly: a koala is a marsupial, not a bear. "Koala bear" is a nineteenth-century mistake that stuck, born from a passing resemblance to a bear cub, and it's stubbornly hung around in everyday English ever since — but biologically, koalas aren't remotely related to any bear species. Their closest living relatives are wombats, another distinctly Australian marsupial, and both belong to a small taxonomic family of their own found nowhere else on Earth. Saying "koala bear" in Australia won't get you corrected out loud very often, but you'll sound like you've done your homework if you don't.

Marsupial means the same thing here it does for kangaroos and wombats: koalas give birth to tiny, underdeveloped young that then complete their development in a pouch, nursing until they're big enough to ride on their mother's back and eventually go it alone. It's the same reproductive strategy that defines most of Australia's most recognisable mammals, and it's a big part of why this continent's wildlife looks and behaves so differently from anywhere else.

Why they sleep so much, and why they only eat gum leaves

Koalas are widely described as sleeping somewhere around 18 to 20 hours a day, which sounds like an exaggeration until you understand what they eat. Their diet is almost entirely eucalyptus leaves — often called "gum leaves" in Australia — which are low in nutrients, low in calories and, in some species, mildly toxic. Digesting them takes real metabolic effort, and koalas cope by moving as little as possible: long sleep, short bursts of activity, and a highly specialised gut (including an unusually long caecum) that gives their system time to extract what little energy the leaves offer.

Australia is often cited as home to well over 700 eucalyptus species, and koalas are famously picky even within that huge range — most individual koalas feed from only a handful of preferred species available in their local home range, rather than eating indiscriminately from whatever gum tree is nearest. That pickiness is one reason koalas are so tied to specific patches of habitat: lose the right eucalyptus trees in an area, and the koalas that depended on them don't simply move next door and adapt.

None of this ability is instinctive from birth, either. A joey is born with a sterile digestive system that can't yet handle eucalyptus at all, and at around six or seven weeks old its mother begins producing "pap" — a soft, specialised form of her own droppings, distinct from ordinary waste and rich in the live bacteria a koala gut needs. By eating it, the joey effectively inoculates its own digestive system with exactly the microbes required to break down tough plant fibre and neutralise eucalyptus's natural toxins, a genuinely important handover that has to happen before weaning onto leaves can even begin.

The upshot for a visitor is practical as much as it is charming: if you're looking for a koala in the wild, you're looking for a napping animal wedged in the fork of a tree during the day, not something moving around a forest floor. Early morning and late afternoon are marginally more likely to catch one stirring, feeding or shifting position, but most sightings — in the wild or at a sanctuary — are of a koala doing exactly what it does best: sleeping.

Where wild koalas actually live

Koalas are found in coastal and near-coastal areas of eastern and southern Australia — Queensland, New South Wales, Victoria and South Australia — following the distribution of the eucalyptus forest and woodland they depend on. They're absent from Western Australia, the Northern Territory and Tasmania, and from most of the continent's arid interior, which rules them out of a Red Centre or Top End itinerary; a koala sighting is very much an east-coast-and-south story.

Population health varies a lot by state, which is worth knowing before you assume "koala" means the same thing everywhere. The Australian government listed koala populations in Queensland, New South Wales and the ACT as endangered under national environmental law in 2022, reflecting real, well-documented declines from habitat loss, disease, bushfires and vehicle strikes in those states. Victorian and South Australian populations are managed separately and have generally fared better — Kangaroo Island's koalas, in fact, are one of the more remarkable conservation footnotes in the country: fewer than two dozen were introduced from Victoria in the 1920s to safeguard the species, and the island's isolated population is now recognised as free of chlamydia, a bacterial disease that affects a large share of mainland koalas and is one of their biggest health threats.

The most reliable wild-spotting spots

A handful of places come up again and again as genuinely reliable for a wild koala sighting — not guaranteed, since these are wild animals, but consistently good enough that they anchor real itineraries rather than just hopeful detours.

• Kennett River, on Victoria's Great Ocean Road — a short stretch of Grey River Road just inland from the highway, sometimes nicknamed "Koala Avenue" locally, lined with manna gum trees that host a genuinely large, easy-to-spot koala population.
• Port Stephens, New South Wales — koala colonies live across the area's coastal forest, with free-to-enter eco-tourism reserves giving a straightforward way to look up into the canopy for one.
• Magnetic Island, off Townsville in Queensland — home to the largest koala population in northern Australia, with populations commonly cited in the hundreds; the Forts Walk is a well-known bushwalking route with a strong chance of multiple sightings.
• Kangaroo Island, South Australia — its introduced, chlamydia-free koala population is large enough that wild sightings along roadside gums and in reserves like Hanson Bay Wildlife Sanctuary are genuinely common.

Spotting technique: look up, look for a grey-brown lump

Wild koala-spotting is a specific, learnable skill rather than luck alone. Koalas rest in the fork of a tree trunk or a branch junction, tucked in a way that often reads as a grey-brown lump rather than an obviously animal-shaped silhouette — most people walk straight underneath one without noticing. Scanning tree forks and junctions at eye level and above, rather than the ground, is the single most useful habit to bring; a local's tip (from a ranger, a tour guide, or a regular at a known koala-spotting road) about which trees have hosted koalas recently is worth more than an hour of your own scanning.

Binoculars help more than a zoom lens does for the initial spotting, and patience matters — a sleeping koala isn't going anywhere fast, so once you've found one, there's no rush. Never attempt to get a wild koala down from a tree, touch it, or feed it; beyond the obvious welfare issue, a stressed koala moving unexpectedly around cars and roads is exactly how vehicle strikes — one of the real, documented threats to wild populations — happen.

Ethical wildlife parks and sanctuaries

A wild sighting isn't always realistic on a tight itinerary, and that's fine — a reputable wildlife park or sanctuary is a completely legitimate way to see a koala up close, not a consolation prize. The better operators combine a near-guaranteed encounter with genuine conservation work: injured-koala rehabilitation, breeding programs for at-risk populations, and public education about the pressures wild koalas actually face. Many of the same reserves that protect wild colonies — like Kangaroo Island's Hanson Bay Wildlife Sanctuary — also run guided experiences, blurring the line between "wild" and "sanctuary" in a good way.

The practical marker of an ethical operator is usually about what they don't let you do: koalas are strictly regulated in most Australian states, and reputable parks limit close contact (holding, if permitted at all, is tightly time-limited and koala-welfare-first) rather than offering unlimited cuddling. If an operator's marketing leads with unlimited handling rather than conservation and welfare, that's worth treating as a red flag rather than a selling point.

Other wildlife worth planning around

Koalas are usually one piece of a bigger wildlife-focused leg of an Australia trip rather than the whole plan. Kangaroos and wallabies turn up in a lot of the same coastal and bushland habitat at dawn and dusk, wild whale-watching runs on its own entirely separate seasonal calendar along the east and south coasts, and Australia's more startling wildlife reputation — crocodiles in the tropical north, a handful of venomous snakes and spiders — is worth a look before you assume it applies to a koala-and-kangaroo coastal itinerary, because for the most part, it doesn't.