This 231-sq-km park covers the shoreline from Hat Pak Meng to Laem Chao Mai, and encompasses the islands of Ko Muk, Ko Kradan and Ko Cheuk (plus a host of small islets). While touring the coast and islands, you may spot endangered dugongs and rare black-necked storks, as well as more common species such as barking deer, sea otters, macaques, langurs, wild pigs, pangolins, little herons, Pacific reef egrets, white-bellied sea eagles and monitor lizards.
The national park headquarters are at the southern end of Hat Chang Lang, just south of where the beachfront road turns inland.