The history of Tarutao is tied to t

The history of Tarutao is tied to the history of democracy in Thailand. The need for an isolated and forbidding environment to lock away enemies of the state caused the Corrections Department to build a penal colony there in 1939.

Two important revolutionary groups were imprisoned here: the Bowondet coup group and the Petty Officers' coup group. Their coup attempts were unsuccessful, but ushered in change nonetheless, and soon a democratic constitution was drafted.
The first prison was located at Talo Udang Bay, but hundreds of new prisoners came every month, so Talo Wao Bay became the second site. Prisoners were forced to build a road 12 km. long and 6 m. wide between the two bays.
From interviews of old guards and prisoners, it was learned that almost 1/3 of the convicts died on the island. Malaria was the main cause of death; but cruelty from guards and starvation were also other major factors.