13. Ko Chang
Ko Chang is located in the Eastern portion of Thailand and is part of the Trat province. The Cambodian border is nearby and it is famous for its national park which is a protected area of rocky bays as well as several thick forests. If you are fond of adventure, then this is one of the islands that you should explore. It also has beautiful sandy beaches, so right after you explore the national park, you can soak up on the sand to relax.
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