Cairns

Cairns is the undisputed gateway to two of Australia's greatest natural wonders: the Great Barrier Reef and the Daintree Rainforest. This compact tropical city in Far North Queensland sits on Trinity Inlet, a mangrove-fringed estuary that opens onto the Coral Sea and the world's largest coral reef system, stretching more than 2,300 kilometres along the Queensland coast. From Cairns' marina, dive boats depart daily for outer reef pontoons where snorkellers and scuba divers encounter a kaleidoscope of marine life — giant clams, Māori wrasse, manta rays, and green sea turtles gliding over gardens of staghorn and plate coral. It's an ecosystem so vast it's visible from space, and seeing it up close is a genuinely life-changing experience.

But Cairns is a two-for-one destination. Drive an hour north and you enter the Daintree Rainforest, the oldest continuously surviving tropical rainforest on Earth — over 135 million years old, making it older than the Amazon. At Cape Tribulation, the rainforest tumbles directly onto the beach, creating the only place on the planet where two UNESCO World Heritage sites meet. In between, the Skyrail Rainforest Cableway and Kuranda Scenic Railway offer spectacular ways to experience the tablelands. The Atherton Tablelands behind Cairns are dotted with crater lakes, waterfalls (Millaa Millaa Falls is the most photogenic), and platypus-viewing spots that feel like they belong in a David Attenborough documentary.

Cairns itself is a relaxed, unpretentious town built around its Esplanade Lagoon — a free public swimming pool on the waterfront that compensates for the city's lack of a swimmable beach (stingers and crocs make ocean swimming inadvisable in summer). The night markets on the Esplanade sell everything from crocodile jerky to Aboriginal art. Rusty's Markets is the go-to for tropical fruit you've never heard of — rambutan, mangosteen, dragon fruit — at ridiculously low prices. The dining scene leans into the region's multicultural character, with excellent Japanese, Thai, and modern Australian restaurants lining Shields Street and Grafton Street.