This is probably one of the most visited places in Hong Kong. High Island Reservoir East Dam is home to breathtaking rock landscapes of international geological importance formed when a supervolcano erupted 140 million years ago. It offers Instagram-worthy views of the reservoir, dam and breakwater dolosse, or double T-shaped concrete wave breakers including towering cliff faces lined with hexagonal rock columns, including towering cliff faces lined with hexagonal rock columns, mysterious caves and sea stacks and coastal scenery. #HighlslandReservoir #EastDam #SaiKung #HongKong #HKhike #DiscoverHK #HKUNESCOGlobalGeopark #NatureHK #GeologyRocks #HKoutdoors #ExploreHongKong