The Ang Thong National Marine Park is 32 kilometers to the northeast of Samui Island. Consisting of 42 small islands it was designated the Ang Thong Island National Park in 1980.
Ang Thong National Marine Park is considered one of the most beautiful archipelagos in Thailand as the name the gold basin (Ang Thong) of the gulf of Thailand demonstrates.
Although there are 42 small islands, Koh Wua Ta Lub is the most popular among travelers. There is a significant amount of wildlife living on the islands including the Asian long tailed monkey (langur), hair nosed otters, pacific reef egrets, white bellied sea eagles, ashy drongos, tortoises, sea turtles, lizards and pythons. It is the foremost spawning ground for the short bodied mackerel.
The best time to visit the park is from the end of January until the end of October.