Koh Kai is am small island located ( 6°34'12.45"N 99°28'3.86"E) between Koh Tarutao and Koh Adang in the Tarutao Nationalpark. The island is famous for a stone archway made by nature.
Thailand 2007, Koh Khai.
The stamp was issued in the series "Definitives - Tourist spots".
Thailand 2010, Koh Khai.
The stamp was issued in the series
"50th Anniversary of Tourism Authority of Thailand".