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Among the many natural delights in Hong Kong, the volcanic rocks columns, layered rocks and sea caves that make up the Hong Kong UNESCO Global Geopark are some of the most unexpected – and awe-inspiring – sights you will encounter during your time in the city.
These geological features are a journey back to ancient times, with the formations in the Northeast New Territories Sedimentary Rock Region dating back to the Devonian Period, some 400 million years ago. Youthful by comparison, the striking honey-coloured hexagonal columns of the Sai Kung Volcanic Rock Region date back to a huge eruption just 140 million years or so ago.
Together, the two regions give visitors a unique geology lesson and a very different perspective on one of the world’s most iconic cities.
Hong Kong’s Geopark covers the northeast coastline of the New Territories, taking in beautiful bays and coves and a number of highly scenic – and almost-deserted – islands. A lot of effort has been put into making the whole area more accessible to visitors and to educating people about these amazing geological features.
All that work has paid off, as now there are a range of ways to enjoy the geopark including guided boat tours, regular ferries to one of the outlying islands, or shuttle buses from Sai Kung to East Dam to enjoy the features along the High Island Geo Trail. Whichever way you choose, the natural wonders of the Hong Kong UNESCO Global Geopark will leave a lasting impression.
Learn about volcanology, details of the local geology, and check out volcanic specimens collected locally and from around the world at the Volcano Discovery Centre. Take a guided tour of one of the volcanic regions to get an up-close look at some of the Geopark highlights. Visit the centre for more information.
High Island Reservoir East Dam is the best place to head for enchanting views of the geopark’s staggering 100-metre tall hexagonal rock columns.
Port Island is the place to find ‘red earth’. The rich iron oxide gives the island’s sandstone and siltstone a bright red hue, giving it the name ‘Red Island’ in Chinese. The rocks at Bluff Head were formed about 400 million years ago. The peculiar rock named ‘Devil’s Fist’ is the result of geological movements, weathering and coastal erosion over the ages.
This easternmost island of Hong Kong is famous for its composition of laminated sedimentary rocks and is also home to spectacular cliffs and wave-cut platforms. It is easily reached by ferry for an enjoyable day trip.
Ma Shi Chau is the perfect outdoor geology classroom where you can learn about the rare tombolo spit before taking a picturesque walk along the rocky coastline on the signposted 3km nature trail.
These island groups are where you can see the stunning hexagonal columns that can only be observed on ferry tours.