This group of islands is a good day’s sail from Koh Samui or Koh Tao, but well worth the trip as for most charterers this is the highlight of their vacation. If heading out here make sure you have plenty of provisions as the only restaurant often runs short of supplies in high season! Managed efficiently by the park wardens, these islands remain undeveloped and pristine. There are several well-maintained jungle trails leading to hidden lakes, caves and panoramic views, but most are best attempted early in the morning wearing good hiking shoes.

Day-tripper boats visit the islands but depart in the afternoon leaving Sunsail yachts alone to enjoy the peace. Rising steeply out of the shallow emerald green water, these towering Jurassic islands and the wildlife on them remain much as they were thousands of years ago.