Sharp Island

Field trips are an essential part of the study of geography. In line with the content and progress of Grade 9 Geography, our school organised a field trip for the Grade 9 students to Sharp Island within the Hong Kong UNESCO Global Geological Park.

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地理学习离不开实地考察，本校根据九年级地理科目的学习内容与进度，于上周安排了九年级的同学们前往香港联合国教科文组织世界地质公园火山岩区——桥咀岛进行实地考察。

This inspiring field trip was organised by Mr. Samuel Chan, a renowned geography educator in Hong Kong. Mr.Chan is a famous geology field trip leader and planner and has published many popular HKDSE geography reference books. Under the guidance of Mr. Chan and the school teachers, the students had a fruitful field trip to learn about wave erosion and sedimentary landforms along the Sai Kung coast.

此次地理实地考察由香港中学地理教育家、知名地理考察领队及策划总监、多套 HKDSE 地理参考书作者陈耀生先生策划和带队。在陈先生与学校老师们的的带领下，同学们实地认识了西贡沿岸海浪侵蚀与沉积地貌等学习内容，收获颇丰。

Learning Objectives

考察目的

The learning objectives of the students on this field trip were:

1. To learn about wave erosion and sedimentary landforms along the Sai Kung coast (including geo, sea caves, sea cliffs and tombolo, etc.).

2. To identify the igneous rocks (e.g. volcanic breccia, monzonite (commonly known as pineapple bun rock) and rhyolite, etc.) that formed in the caldera and its rim 140 million years ago.

3. Collect data in the field to verify the following geographical concepts

a) The further away from the shoreline, the larger the deposit.

b) The further away from the shoreline, the finer the roundness index of the deposit.

本次实地考察学生们的学习目的为：

1.认识西贡沿岸海浪侵蚀及沉积地貌 (包括海蚀隙、海蚀洞、海蚀崖 及连岛石洲等)

2.认识1亿4000万年前形成的破火山口及其边沿地带的火成岩 (如火山角砾岩、石英二长岩（俗称菠箩包石 ）及流纹岩等)

3.实地搜集数据验证以下的地理概念

a)距离海滨线越远，沉积物越大

b)距离海滨线越远，沉积物的圆浑度越细

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After boarding the boat at Sai Kung Pier, the students listened to Mr Chan"s introduction while enjoying the coastal scenery, feeling the sea waves and observing the wave erosion. Arriving on Sharp Island, the students went began their fieldwork at Tombolo during low tide, where they touched the igneous rocks and followed the warnings to protect these unique rocks and the creatures living underneath, demonstrating care of this unique area.

从西贡码头出发，学生们在船上一边聆听陈先生的讲解，一边欣赏沿海景物，直观地感受海域的风浪以及海力作用下的侵蚀地貌。抵达桥咀岛后，学生们在退潮后的连岛石洲上进行实地考察，亲手触碰由火山喷发而形成的奇岩怪石，在考察过程中，学生们亦按照警示保护岩石以及生态，珍惜这片独特的区域。

About the Sharp Island

咀岛

Lying 2 km from Sai Kung town centre, Sharp Island is a narrow island in Sai Kung Inner Sea. This Hong Kong UNESCO Global Geopark attraction is only 15 minutes by boat from Sai Kung Pier.

桥咀岛位于西贡内海，距离西贡市中心2公里。这是香港联合国教科文组织世界地质公园最容易到达的景点，从西贡码头乘船只需15分钟。

The island is about 2,500m in length and about 500m across from east to west. The highest point is 136m above sea level.

该岛长约2500米，东西宽约500米。最高海拔为136米。

In recent years, Sharp Island has gained great attention with its unique geological and coastal features. It is home to different types of igneous rock such as volcanic rock breccia, rhyolite, and the pineapple bun rocks. The most stunning coastal feature is the natural tombolo that emerges only at low tide linking Sharp Island with Kiu Tau Chau.

近年来，桥咀岛以其独特的地质和海岸特征备受关注。它是不同类型火成岩的家园，岩石如火山岩角砾岩、流纹岩和菠萝包岩。最令人惊叹的海岸景观是天然形成的连岛石州，它连接起桥头和桥咀岛，只有在退潮时才会显现。