Sai Wan Battery, Artillery battery in Chai Wan, Hong Kong.

Sai Wan Battery is a military fortification on the eastern coastline of Hong Kong Island, featuring multiple gun positions and defensive walls. The structures are arranged across the terrain to control views of the waters and approaches to the harbor.

The battery was built in 1903 and initially mounted large coastal guns for defending the harbor. During the 1920s, it was upgraded to serve as an anti-aircraft position, reflecting changing military needs of the time.

The site reflects Hong Kong's colonial military past and how defense strategies shifted over time to meet new threats. Walking through the grounds, you can observe how the structures changed to serve different purposes across generations.

The site is accessible via marked trails that lead through the surrounding park area to the fortification grounds. Bring water and sun protection, as exploration takes place entirely outdoors and can be quite exposed.

The 1895 redoubt on the hilltop now carries a digital television signal relay station on its upper level, and visitors cannot enter it. The two 6-inch breech-loading coastal guns added in 1898 were removed in 1906, only three years after the battery was completed in 1903.