Sightseeing and Things to do
The main activities on the Similan Islands are obviously scuba diving and snorkeling, however island numbers 4 and 8 also offer bird watching and nature trails.
Koh Miang, or Island No. 4, is the second largest island and is the site for the headquarters of the park. There are 2 white powder beaches as beautiful as any in Thailand. The large beach and the small beach on separate sides of the island are separated by a 10 minute walking trail through the evergreen forest.
This is the best island in the park for viewing wildlife. By venturing inland, away from the beach you may catch a glimpse of the Nicobar Pigeon or the hairy-leg mountain land crab (Pu Kai in Thai, which translates at 'Chicken Crab' because it makes a noise like a baby chicken).
Similan Island number 8 is the largest in the chain and in its 'Donald Duck Bay', named because the granite rock formations resemble the Disney character, there is a viewpoint well worth trekking up to for sweeping views of the islands. There is also a 2.5 km walking trail here.