Boat Trips from Koh Phangan
Koh Phangan sits in a remarkably rich stretch of the Gulf of Thailand, within easy boat reach of some of the most spectacular scenery and marine life in Southeast Asia. The island itself is the starting point: from Thong Sala pier in the south and Chaloklum village in the north, a handful of genuinely outstanding boat trips extend the island experience well beyond the beach in front of your bungalow.
The headline excursion is Ang Thong National Marine Park — a protected archipelago of around 42 limestone islands roughly 30 kilometres southwest. A speedboat day trip there combines snorkelling over coral gardens, sea kayaking between the karst formations and a hike to a viewpoint above the saltwater lagoon that sits inside one of the main island's hollow hills. It's the sort of landscape that justifies the crossing time several times over, and it's best done on a calm-weather day in the dry season.
The north-coast alternative is Sail Rock, the offshore pinnacle between Koh Phangan and Koh Tao that regularly appears on lists of the Gulf's top dive sites. Dive centres in Chaloklum run day-trip boats that take both certified divers and snorkellers out to the site. And for something smaller in scale, the Bottle Beach longtail from Chaloklum reaches a road-less bay in around 15 minutes — one of the island's most quietly beautiful beaches, accessible only by boat or a hard jungle trail.