The fortress is located on Praia Grande Bay and was constructed in the 1720s. It originally belonged to the Franciscan Monastery, and was equipped with six cannons with a maximum range reaching as far as Kai Keang Hill in Taipa. In its day, the fortress was therefore an important coastal defence.
Architectural characteristics:
Oval in shape, the fortress wall is 6 metres high. It is divided into upper and lower floors, with a tunnel that leads to the bottom of the fortress (now not used due to land reclamation). The two-storied building behind the fortress is currently St. Francis Barracks.