Lying to the east of Koh Samet, the Koh Man island group consists of 3 islands, Koh Man Nai, Koh Man Klang, and Koh Man Nok, which mean inner, middle, and outer islands. These islands are located about 5 kilometers off Laam Mae Phim and take about 50 minutes to reach by boat. The islands offer fine sandy secluded beaches for sunbathing and swimming. It costs about 500 baht for a round trip to these islands.

Koh Man Nai is the home to several species of seaturtles.The island is also a breeding center and nursery for seaturtles.