Ao Kao Beach is the most popular beach on Koh Mak with most resorts along this beach. Length of the Ao Kao Beach about 5 km and you will find a lot of nice spots there. From Ao Kao Beach, you can enjoy nice sun-sets and a view to Koh Rayang Nai and Koh Rayang Nok which lies just a little way offshore. You can easily get on the kayak.
Located on the North West coast, Ao Suan Yai Beach is a long stretch of pristine and beautiful beach with clear blue waters. There are many resorts stretching along this beach. In the center of the beach is a pier on which arrival and departure for Panan Speedboats coming from the mainland and speedboat coming from Koh Chang, Koh Wai or Koh Kood.
At the end of AoSuan Yai Beach is Ao Pra beach located in a long, shallow, sandy bay, with a new resort. At the other far end you can stumble out at Turtle Beach (Ao Tao Kai), a small deserted beach at the very northern tip of the island, well worth the effort.
Further east you will find Ao Tan Beach beach with one resort. This beach is quite lonely, but this is what some people are looking for. It is not the best beach to have a swim, but here you can enjoy a peaceful and lonely environment. At the far north-east end from AoTan you will see Laem Son beach, facing Koh Kradad island.
Going south you will see Ao Nid bay which serves as the administrative center and its long concrete pier is used by Boonsiri Catamaran, Suansuk Speedboat and Seatales Speedboat. At nearby AoPong beach (200 m from AoNid pier) you can enjoy snorkeling, watching live corals and underwater life.
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