Pulau Tenggol is a small, jungle-covered island off Dungun in Terengganu, Malaysia, set in the warm South China Sea and surrounded by a cluster of rock islets and pinnacles. For divers, it is a compact playground of steep drop-offs, boulder fields, sloping reefs, and purpose-sunk wrecks, with more than 20 sites and a real chance of current-driven action. The island sits inside the Terengganu Marine Park, so reef etiquette matters and visitors pay a Marine Parks Malaysia conservation charge. Most trips run as resort or dive-center packages, with speedboats from Dungun and a simple island routine of eat, dive, sleep, repeat. Plan around the northeast monsoon: March to October is the reliable window, with the steadiest conditions typically mid-year and seasonal whale shark sightings peaking late summer. For non-divers, expect quiet beaches, short jungle walks, and easy mainland add-ons like Dungun's Thursday night market.