If you haven’t been to The High Island Geo Trail, at the High Island Reservoir east dam, you are missing out the best hiking gem of HK. We highly recommend you take the long route by walking from Pak Tam Chung (10km) as you will be able to enjoy breathtaking views of the clear blue lake before you reach the Reservoir.


This is the best location to observe Hong Kong’s hexagonal rock columns (a Unesco’s site). This site also features other interesting geological structures and features like faults, distorted columns and an intrusive dyke.


1. You can book the East Dam Half-day Tour at the Volcano Discovery Centre. Round-trip itinerary is available. For enquiries, please contact the Volcano Discovery Centre (tel: 2394 1538); or

2. Take bus no. 94 departing from Sai Kung town centre or bus no. 96R departing from Diamond Hill MTR station (weekends and public holidays only) and get off just after Pak Tam Chung. Walk along Tai Mong Tsai Road to the junction ahead. Turn right on Sai Kung Man Yee Road and walk about 9 km; or

3. Take a taxi from Sai Kung town centre or Pak Tam Chung to the geo-trail at the East Dam, High Island Reservoir; or

4. Take a NT Green minibus #No. 9A which plies between Pak Tam Chung and the East Dam of High Island Reservoir, on trial basis, on Sundays and public holiday.