Boat trip to Nine Pin Islands and Tung Lung Pirate Fort

Why We Recommend it

Led by Dr Rod Sewell, Head of the Hong Kong Geological Survey, and Smriti Safaya, a well-known expert on the islands of Hong Kong, the Royal Geographical Society of Hong Kong will host a boat trip to the beautiful and inaccessible Nine Pin Islands.


Hong Kong’s Nine Pin Islands are some of the most spectacular developments of columnar hexagonal jointing in the world, and are reminiscent of the World Heritage Site of Giant’s Causeway in Northern Ireland.

The tuffs of the islands were erupted about 140 million years ago, a time when dinosaurs roamed the world.  An estimated 70 cubic kms of rubble were erupted during the single event which formed the tuffs. Compare that to only 2 cubic kms during the Mt. St. Helens eruption and 12 cubic kms during the Krakatau eruption of 1883, which dispersed haze all over the world.

The boat trip, which sails through attractive scenery and open seas to the islands, first takes you to the North Nine Pin Island to see beautifully developed hexagonal columns, some of which have toppled over above a large rock slide. Afterwards, you will be taken to the South Nine Pin Island to see a sea arch that has developed along a fault.

After visiting the Nine Pin Islands, you will land at Tung A for the spectacular cliff scenery, and will actually get to walk on spectacular hexagonal columns. The trip then heads to Tung Lung Chau for a hike to the Tung Lung Pirate Fort and interesting rock outcrops.  Light refreshments are available for sale in Tung A and Tung Lung Chau.

To register, please email and state how many places you would like to reserve.


When: 16 Nov 2019 - 16 Nov 2019 Where: Nine Pin Islands