Koh Seh

Koh Seh or Koh Ses (Khmer: កោះសេះ, also romanized as "Kaoh Ses", its former French name: "Ile a L’eau") is a Cambodian island located in the Gulf of Thailand, inside Ream National Park, Sihanoukville province. It lies south of Koh Thmei and around south of the main-land of Sihanoukville's Ream commune. A wide sound separates it from Phu Quoc. "Koh Seh" means Horse Island. Less than 400 meters south-west of Koh Seh lies the tiny islet of Koh Ky.
Koh Seh is uninhabited while most of its shores are fringed with mangroves. The island constitutes the south-easternmost part of Ream National Park.
Koh Seh is sometimes mistaken with Koh Ach Seh, located in Kep Archipelago.