5 islands lie offshore from Koh Mak – Koh Kham, Koh Kradat, Koh Rayang Nok, its adjoining sister Koh Rayang Nai and the tiny Koh Pii.
Koh Rayang Nok is home to a small resort, while Koh Kradat’s basic accommodation is used by Thai weekenders. Koh Kham has an unfinished luxury resort. The final two, Koh Rayang Nai and Koh Pii are uninhabited.
There are entrance fees at Koh Kham (200bt), Koh Rayang Nok (150bt) and Koh Kradat (150bt) and they can be visited on boat trips scheduled through your resort. The energetic can also kayak across to these islands without too much bother.