If you like a small-group experience out on the water, book a day trip on a catamaran. Coral Cats' catamaran are a great choice for a sail out to the Mamanuca Islands off the west coast Viti Levu, Fiji's largest island. You'll leave from Port Denarau and head towards the islands of Malolo Lailai, Tavarua, Namotu, and out to the outer reefs. Snorkelers (gear included) can check out the amazing array of tropical fish. A hearty barbecue lunch is served on the island of Malolo Lailai, with time afterwards to loll on the white sand beach or swim. The crew make this a particularly joyful trip, especially for children, sharing local lore and experiences.