Most resorts and several restaurants rent out snorkeling gear (typically RM10 a day for mask, snorkel, and fins) and arrange snorkeling tours around the islands. Famous snorkeling spots on Besar include Teluk Pauh, Shark Point and Tanjung Basi. The best spot to see sharks (black tip) is in front of an extremely small beach, only reachable by boat, between Shark Point and the Teluk Dalam large beach, or the rocks off the Coral View and PI Resort. They are normally seen cruising the bottom of the reef but be careful in low tide, otherwise you could end up swimming right alongside them (mostly babies though). For turtles, the best spot is the middle of the beach in front of Perhentian Island Resort, where the sandy bottom is covered with algae.