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The Southern Islands full-day tour is a private longtail charter to three islands off the south coast of Koh Samui: Koh Madsum (Pig Island), Koh Taen (Coral Island) and Koh Rap (Deer Island). The boat is yours alone, so the day runs at your pace, with snorkelling stops, quiet beaches and lunch along the way. A slower, calmer way to see the south, away from the busier group boats.
The Southern Islands:
Koh Madsum (Pig Island): a small, picturesque island off the southeastern coast of Koh Samui, home to a friendly population of wild pigs. You can swim in clear water, relax on white sand and meet the pigs that made the island famous. A relaxed, lighthearted stop, and a favourite with families.
Koh Taen (Coral Island): a quiet, undeveloped island known for calm beaches and healthy coral reefs. It is one of the best snorkelling spots around Koh Samui, with a mix of fish, reef and clear shallow water. The island also has plenty of birdlife, including a nesting area rarely seen elsewhere nearby. Your guide will take you to the best spots, or you can stay aboard and enjoy the scenery if you prefer.
Koh Rap (Deer Island): the furthest island from Koh Samui on this trip, a quiet, remote spot known for clear water, soft white sand and a relaxed atmosphere. Often called Deer Island, it is home to a small population of wild deer you might see along the beach or in the trees. The reef is ideal for swimming and light snorkelling, with plenty of scenic spots for photos, and the journey back often lines up with a sunset over the water.
Every trip runs a little differently depending on tides and weather, and the crew will always choose the calmest route and the best snorkelling spots for the day. If there is a particular island you would like more time on, just say so. The aim is simple: a full day exploring the islands at your own pace, with time to swim, relax and enjoy each stop.
Looking for a shorter trip?
Check out our half day experience here






















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