This fortress, popularly called by the kinsfolk "Pom Phra Chun", was constructed during the reign of emperor Rama V hold the year 1893, again is located seven kilometers from Phra Samut Chedi on Suksawat access. The Royal Thai Navy sank a French warship, invading Thai waters, by firing from this fortress. The binoculars and the debilitated cannons are cool kept effect this fortress and a exploration can equate made with a buy into issued by the Public Relations Section, The Royal Thai Navy.