Rock and dam resources

Rock Formations and High Island Dam Resources

Info from Hong Kong’s Great Outdoors

Outcrop by the east dam of High Island Reservoir, and rough-hewn Po Pin Chau just offshore, show strong columnar jointing, resulting from cooling of tuff formed from incandescent volcanic ash. The dam is guarded by 7000 concrete dolos –interlocking wave energy diffusion structures that protect against erosion, including during typhoons.

Hike from northeast corner of High Island Reservoir (accessible on foot, or by taxi from Sai Kung.

Hong Kong Geopark – article on this site

 

High Island articles/photo albums elsewhere on the Internet

High Island Reservoir has photos by Jacek Piwowarxzyk from stage one of the Maclehose Trail.

 

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