Practical information about Ang Thong National Marine Park
Entrance for foreigners: THB 300 per adult and 150 THB per child.
The best way to visit Ang Thong National Maritime Park is to take a boat tour through an agency. They are usually done by speedboat, or sometimes by junk. Prices vary according to the type of offer, the cheapest taking you on boats of 40 people. To avoid the crowd, it is advisable to choose agencies that offer very early departures. I chose Samui Insolite
that you can contact via its website
to organize this tour. But you can find other agencies of course.
Another option is to take the wooden ferries that join the 3 main islands, either for a day trip using them to go from one island to another and then back to Samui, or to go there and spend the night in a bungalow (around 1,000 to 1,5000 THB) or tent (250 THB) on Koh Wua Ta Lap. Reservations recommended via Thai national parks website
which is unfortunately not that easy to use and requires payment by bank transfer but again an agency can book it for you. It is also possible to come with your own tent otherwise you can rent everything you need to camp at the Visitor Center