Great Barrier Reef

Worth it if you can afford a tour—the 4.7 rating from over 16k reviews suggests people genuinely rate the experience, and free entry means you're only paying for the actual activity. That said, it's pricey and weather-dependent, so go in shoulder season (April–May or September–October) to dodge crowds and cyclone season, and book a mid-range tour rather than the cheapest option if your budget allows.

Written by us from the live data above — never copied from anywhere. Ratings and counts update from Viator.