Take a full-day tour from Cairns to explore the remarkable outer Great Barrier Reef. Visit two pristine locations and choose from options suited to your experience level. Enjoy unlimited snorkeling, or certified scuba divers can take guided dives, while first-timers can take an introductory dive. Along the way, spot a variety of marine life, including fish, stingrays, turtles, and corals, at this UNESCO World Heritage–listed natural wonder.