Pom Phairi Phinat

Pom Phairi Phinat is a restored 19th-century coastal fort located at the mouth of the Chanthaburi River in Pak Nam Laem Sing, Laem Sing District, Chanthaburi Province, eastern Thailand. Built in 1834 during the reign of King Rama III as part of Thailand's coastal defense system, it features laterite walls, historic cannons and a seaside viewpoint. Today it is a preserved historic site offering sea views and insight into early Rattanakosin military architecture.

Visitors can expect a compact, restored coastal fort set on a small headland at the river mouth overlooking the Gulf of Thailand. The site includes laterite and brick ramparts, restored walls, old cannons positioned along the parapets, information boards, and an open courtyard. A viewpoint area offers panoramic views of Laem Sing Beach, the estuary and the sea. The surroundings are park-like with trees and seating, suitable for walking, photography and brief historical exploration.

Built in 1834 during the reign of King Rama III (King Nangklao) as part of a coastal defense system to protect the Chanthaburi estuary from Vietnamese incursions. Paired with Pom Phirop fort on the opposite bank, it formed a crossfire defense at the river mouth. Later abandoned as military technology changed, it was subsequently restored and registered as a historic site by the Fine Arts Department.

Represents early Rattanakosin period military architecture and coastal fortification techniques using laterite and brick. It is a locally significant heritage landmark illustrating 19th-century Thai defense planning and is preserved as an educational historic site for visitors.