Long time ago, Khun Chang, a son of the rich family, loved Neang Theam, a daughter of the villager, but Khun Chang is not handsome. He engaged Neang Theam to be his wife. One day Neang Theam betrayed him to love Khun Phen, a commander in chief. Then Khun Chang brought a complaint to the king. At that time the king judged to cut Neang Theam in two pieces, one piece to Khun Chang and one piece to Khun Phen. Later on, Khun Chang build one reliquary monument (Cheat Dey) as a souvenir of his love with Neang Theam and put her dead body there. Now people at Koh Kong call Cheat Dey Khun Chang Khun Phen.
Kbal Chhay Resort Koh Sdach is one of the islands in Kiri Sakor district about 81-kilometer from Koh Kong Town. Most of the passengers from Koh Kong province, Srae Ambel district, and Krong Preah Sihanouk always take a rest at this island. Moreover, when it has storm, all the boats and fishing boats always stop at this island. Koh Sdach is a natural tourist site that has a long beautiful beach and full of many kinds of sea fishes and corals. Tourists can see a lot of corals that live in this area when they dive into the water about one or two meter.