Nature tourism provides the economic base for the islands. Both the islands have palm-fringed white coral sand beaches (that can be tough on the feet) and turquoise blue sea. Popular tourist activities include scuba-diving, snorkeling, and swimming. On most beaches, the water is shallow with many rays, cuttlefish and parrotfish. For diving, there are dozens of dive sites around both main islands, as well as several off-shore sites. Apart from these, activities like camping, canoeing, fishing, jungle trekking, and banana boat riding are also available.