The Great Barrier Reef is the largest living structure on Earth — visible from space, stretching over 2,300 kilometres along the Queensland coast. This underwater wonderland is home to 1,500 species of fish, 400 types of coral, and countless sea turtles, dolphins, and manta rays.

Whether you snorkel the shallow lagoons, dive the outer reef, or see it from a helicopter, the kaleidoscope of colours beneath the surface is unlike anything else on the planet.

Pro tip: Sail to the outer reef for the healthiest coral and best visibility. If you’re not a confident swimmer, the glass-bottom boats and semi-submersibles are excellent alternatives. Choose a reef-safe sunscreen to protect this fragile ecosystem.