Hong Kong Geopark Logo

 

Sharp Island


Fairy Path (Half-day course)


 

 

Sharp Island is one of the most easily accessible geopark attractions. About 15 minutes from Sai Kung town centre by boat, it is a lovely island of great natural beauty and geoheritage. The Sharp Island Geo Trail begins at the beach and stretches across a tombolo, ending at the opposite islet, called Kiu Tau. The “pineapple rocks” there are superstars of Hong Kong Geopark. They were once ordinary granite boulders, which were sculpted into their present appearance by weathering processes and wave erosion. With their reticulate crack on the surface, they bear a striking resemblance to the pineapple bun, a local delicacy well-loved by locals and tourists alike.

The tombolo is the famous landmark on Sharp Island. This 200m natural sand levee is made up of sediments transported and deposited by wind and waves. It appears above water only at low tide. To see it, check the tidal information published by the Hong Kong Observatory beforehand and plan your trip for a time when the tide is below 1.4m. When in Sai Kung, don’t miss Sharp Island. Enjoy the sea breeze and lovely sunshine on the beach and the tombolo. What better way to spend a leisurely day than exploring this idyllic spot!
Dozens of quartz monzonite boulders are scattered on the beaches of the Sharp Island tombolo. Weathered and eroded to different degrees, they have “pineapple bun” -like cracks and are one of the biggest attractions on Sharp Island. Different degrees of thermal expansion and contraction of the outer and inner layers of the monzonite boulders have resulted in cracks between the layers, so that the outer layers peel off like onion skin, a process known as “exfoliation”. Thermal expansion and contraction have also caused reticulate cracks, which have expanded and deepened over time under sustained weathering and erosion, eventually separating the rock surface into small irregular blocks.
Rhyolite is an acidic extrusive rock formed by solidification of cooled granitic magma extruded upon the ground surface. It is so named for the iconic flowing lines. Observed under a microscope, you can often find rhyolitic and porphyritic vitreous properties, pellets, felstone and micrographic textures. In most cases, distribution of rhyolite formed by lava flow is limited, as this type of rock is usually outpoured by relatively small volcanic domes and lava flows. Hong Kong is no exception. Apart from Sharp Island, similar flow-banded lava can only be found in Yim Tin Tsai. The rhyolite lava of Sharp Island is living record of ancient volcanic eruptions and lava flows.

 

 

Half-day Course to Sharp Island

 

How to get there:

By Ferry

Take a ferry shuttling between Sai Kung Town and Sharp Island at Sai Kung Pier, right next to the Sai Kung Bus Terminus.

 
Tips:

Remember to bring along enough water, snacks, sunglasses and sun cap.

Tombolo is accessible when tidal level is lower than 1.4 meter. Visitors should note the tidal levels before crossing the tombolo and observe the safety guidelines.

HONG KONG OBSERVATORY: Tidal Information

 

 


 

How to Explore Sharp Island

Before planning a trip, visitors should check the tidal levels, best to visit at low tide, and observe the safety guidelines. Please refer to Hong Kong Observatory for tidal information.

 

travel route

Download the Above Route in PDF

 

 

 

Video of Sharp Island

 

 

 

 

 

Key of Attraction

Don't forget to take your time to visit them !!

 

Sai Kung Pier

Sampan Boat

Sharp Island Pier

Remnants of Ancient Caldera

Pineapple Buns
(differential weathering)

Rhyolite
(rocks with lines)

Tombolo
(sand bridge) at Low Tide

High Tide
(tombolo disappears)

Kiu Tau

The Beach

Sunset

Back to Sai Kung

 

 

 

Location Map of Sharp Island

 

 

 

Leave No Trace. Take Your Litter Home. Enjoy Your Geopark Journey.

 

 

Brand Hong Kong          Web Content Accessibility Guidelines 2.0        OGCIO - Web Accessibility Recognition Scheme

 

| Disclaimer | Copyright Notice | Use of Photos | Web Accessibility Conformance | Privacy Policy | Site Map |
Last Review Date : 1 July 2021