Ko Kai, Ko Po Da Nok or Ko Dam Khwan has white sand beach on its three sides, the other side has limestone mountain which protects the island from large waves. The row of lush pine trees makes the island a perfect place for a casual day.
Reference: https://www.tourismthailand.org/Attraction/ko-kai-ko-po-da-nok-or-ko-dam-khwan-2
