Off the east coast of Borneo, in Malaysian territory, three little islands sit in the Sulu Sea. Palau Selingan, otherwise known as Turtle Island National Park, is made up from Selingan, Bakungan Kecil and Gulisan islands, all of which are havens for green and leatherback sea turtles during nesting season. Throughout the year, turtles will emerge from the sea at dusk to lay their eggs, before lurching back into the ocean waters. Come between July and October for the calmest seas, but make sure to book in with Sabah Park before arrival, as the conservation area has a limit on people visiting.
Elsewhere in Borneo, scuba divers and snorkellers usually head to Sipadan Island for the opportunity to swim alongside turtles. We advise keeping at a good distance, especially in August during mating season, when turtles can become aggressive.