The island of Ko Muk (also spelt Ko Mook and Ko Muuk) sits relatively close to the mainland between Ko Kradan and Ko Ngai. A quintessential white sand and turquoise water getaway it is not, but it is a good place to get a feel for Thai island village life.
The locals are mostly Muslim people. Their occupations are fishing (cuttlefish), growing Para rubber and coconut trees.
For activities, the island's top draw is the famed Emerald Cave.It's reached by swimming through an access tunnel that becomes submerged at high tide, so if not visiting with a guide it's vital to ask the locals about the right time to go. Even at low tide, the tunnel is often full of fish and it can be a bit of a freaky experience.