Event Detail


Boat Field trip to Nine Pin Islands & Tung Lung Pirate Fort

Saturday, 13 Nov 2021

The Royal Geographical Society is delighted to welcome Professor Jed Kaplan to lead this boat excursion to the beautiful and inaccessible Nine Pin Islands.

The Nine Pin Islands are probably the most spectacular development of columnar hexagonal jointing in the world, and are reminiscent of the World Heritage Site of Giant's Causeway in Northern Ireland, UK.

The boat trip, through attractive scenery and then open seas to the islands, first visits the North Nine Pin Island to see the beautifully developed hexagonal columns, some of which have toppled over above a large rock slide. The second visit is to the South Nine Pin Island to see a sea arch that has developed along a fault.

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

Following the circumnavigation of the Nine Pins, the trip also includes a landing at Tung A, to view the spectacular cliff scenery, plus actually to walk on spectacular hexagonal columns. The trip then goes to Tung Lung Chau where there is an interesting hike to visit the Tung Lung Pirate Fort and view some interesting rock outcrops. There are light refreshments for sale in Tung A and Tung Lung Chau.

Professor Jed Kaplan studied Geography and Earth Sciences at Dartmouth College, USA, and received his PhD in Plant Ecology from Lund University, Sweden. He subsequently held several postdoctoral fellowships. Later, he held Professorships at the Universities of Geneva and Lausanne, Switzerland, supported by the European Research Council. Prof Kaplan was a Senior Research Fellow in the Environmental Change Institute, University of Oxford, and is currently Associate Professor in the Department of Earth Sciences, University of Hong Kong. He has published more than 100 articles in major international journals including Science and Nature, and is recognised as an expert in interdisciplinary global environmental history. He is currently editor-in-chief of the journal Global and Planetary Change.

Timings:                Meet at Ferry Pier 10, Central 10.00 am
                            Arrive at Ferry Pier 10, Central 6.00 pm

Cost:                    HK$880 for Members and $980 for Members’ guests including an onboard professionally catered lunch.

To reserve places, please email to This email address is being protected from spambots. You need JavaScript enabled to view it. and state how many places you would like. You'll then receive booking instructions and a booking form. Anyone wishing to join the Field Trip who is not yet a member is encouraged to join the RGS-HK. Detailed joining instructions will follow shortly before the event.

This event is going to be held within our understanding of the social distancing rules of the Government then prevailing. Social distancing regulations will be observed at all times.

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