Laem Phak Bia

Laem Phak Bia is a sandy cape and coastal area in Phak Bia Subdistrict, Ban Laem District, Phetchaburi Province, on the western shore of the Gulf of Thailand. It is known for its beach, extensive mudflats, mangrove forests and the Royally Initiated Laem Phak Bia Environmental Research and Development Project. The site combines natural coastal scenery with environmental study trails and is a noted location for birdwatching and nature education.

Visitors can expect a quiet coastal cape with a sandy beach, wide intertidal mudflats and restored mangrove forest. A wooden boardwalk and nature trail winds through mangroves with bird observation hides and interpretive signs. The area includes oxidation ponds and wetland treatment systems of the Royal Environmental Research Project. Surroundings are open and natural with views over the Gulf of Thailand, suitable for walking, photography and observing migratory and resident birds.

The Royally Initiated Laem Phak Bia Environmental Research and Development Project was initiated in 1990 by King Bhumibol Adulyadej (Rama IX) to research and demonstrate nature-based treatment of wastewater and solid waste using mangroves, oxidation ponds, constructed wetlands and grass filtration.

The site is recognized as a model for sustainable environmental management and royal environmental stewardship, serving as an educational centre for conservation, coastal ecology and community-based natural resource management.