High Island Reservoir

Did you know that Hong Kong has a history of volcanic eruptions? Don't worry; the eruptions occurred 140 million years ago, but curious hexagonal rock columns - formed when molten materials cooled - remain to marvel at today. Other geological wonders add to the surreal setting, which is set against the serene backdrop of a vast reservoir that has since become a part of the Hong Kong UNESCO Geopark. Come on this short hike to High Island Reservoir and see Hong Kong like you've never seen it before!

Following the 1967 Hong Kong riots, when mainland China briefly cut off water supplies to the city, the local administration felt it would be smart to construct several sizable reservoirs for the city. Thus, a decade later, the man-made High Island Reservoir was created, blending with the natural beauty of its surroundings.

The West Dam and the East Dam, the reservoir's two main dams, are separated by about an hour. The East Dam is more away, but the trek is well worth it for its geological wonders. It is well renowned for its hexagonal rock columns, which were created when neighboring volcanic ash and lava cooled 140 million years ago.

There's also a high sea cave and a strange dolosse wall, where thousands of geometric, jack-like concrete blocks are scattered along the water to protect against strong waves. Keep an eye out for the Po Chin Chau sea stack, where centuries of erosion have split the island apart, resulting in a rock face that resembles a massive pipe organ.

But perhaps the best part is that the hike is relatively easy, as the entire path is a smooth, paved road with no sharp inclines. The abundance of rest stops along the way makes the hike ideal for beginners and anyone who prefers a relaxing stroll to an intense workout.

Despite the fact that the East Dam is the only part of the Hong Kong UNESCO Geopark that can be reached on foot, the reservoir is still quite remote. You won't find any kiosks or vending machines after getting off the bus at Pak Tam Chung, so stock up before you go. Remember to wear sunscreen because, while the path is level and smooth, there isn't much shade along it.

Location: far south eastern part of the Sai Kung Peninsula