Jin island, also known as Tiu Chung Chau, is one of the islands just outside of Sai Kung. Kam Chung Ngam in the southern part of the island has been regarded as one of the famous “Four Sea Arches” of Hong Kong. The beautiful shallow water hidden inside the arch is a truly hidden gem. The best view of the arch is actually located uphill. From the top the arch will appear as the wagging tail of a goldfish. Checkout the video to see all the spectacular scenery and to have idea how to reach the goldfish wagging tail viewpoint.