This is one of our most recommended activities in Zanzibar, where you can swim and snorkel at three different spots (Dolphins, relaxing at the Sandbanks, and Snorkeling at the Mnemba reef. Mnemba Island was ranked #1 Best Beach Destination in Africa by tripsavvy. For the sake of precision, Mnemba is a reef and not an Atoll, as sometimes called Mnemba Atoll in many publications and charts. Mnemba is well known for the excellent clarity of its waters ( for this area of the Indian Ocean) and the unusually prolific and diverse corals and tropical marine life where you can able to spot different species of fishes while Snorkeling. Some of the species that you can see at Mnemba reef include; Angel Fish, Blue Spotted Rays, Black Snappers, Groupers, Red Tooth Triggers, Flounder, Octopuses, Leaf Fish, Scorpion Fish, Stone Fish, Frog Fish, and lots of Trevallies.