One of the main attractions of the Hengam island is the presence of sea dolphins in the western and northern waters of the island. Many tourists come to Hengam Island to see these dolphins. Locals take tourists by boat to a place in the sea where dolphins can usually be seen, to watch the dolphins swim and move in groups at sea. Tourists wait for a group of dolphins to come to the surface. If you are lucky, you will often see dolphin dorsal fins on the surface of the water during this boating tour. The dolphins move en masse and during their movement they come to the surface of the water in a part of the sea and after a while they go underwater again.