San Benedicto Island is a popular scuba diving destination known for underwater encounters with dolphins, sharks, giant manta rays and other pelagics. An area called The Boiler is where divers commonly interact with the rays. Divers have also spotted tiger sharks, Galápagos sharks, silky sharks, and humpback whales here. Since there is no public airport on the island, divers visit here aboard dive vessels. The most popular months to visit are between November and May when the weather and seas are calmer.