Laem Son National Park

This serene 315-sq-km national park covers 60km of Andaman coastline (Thailand's longest protected shore) and over 20 islands, including increasingly popular Ko Phayam. It's 85% open sea. Much of the coast is fringed by mangroves and laced with tidal channels, home to fish, deer, macaques, civets, giant squirrels and over 100 bird species, including white-bellied sea eagles.