Phra Chulachomklao Fort

Phra Chulachomklao Fort is a historic coastal fort at the mouth of the Chao Phraya River in Laem Fa Pha, Phra Samut Chedi District, Samut Prakan Province, Thailand. Built between 1884 and 1893 during the reign of King Chulalongkorn (Rama V) to defend the river approach to Bangkok, it is notable for its well-preserved disappearing guns, underground magazines, and the adjacent HTMS Mae Klong museum ship and naval museum.

Visitors can expect a well-maintained coastal fort complex set on the west bank of the Chao Phraya River estuary with open grounds, tree-lined avenues and river views. The site includes six restored 6-inch Armstrong disappearing guns in concrete pits, underground ammunition magazines, trenches, a naval museum exhibition, and the preserved HTMS Mae Klong warship. Areas are walkable with interpretive displays, photo spots, and guided tour routes explaining the fort's layout and operation.