The section between Pak Tam Chung and the East Dam at High Island Reservoir, albeit quite long, has a gentle slope and is therefore a somewhat comfortable start to a hike. Commanding the best view in this section is unequivocally the clear and blue High Island Reservoir, which was built in 1979, when some 400 Hakka villages had to move out to make way for the reservoir, whose mammoth scale was therefore self-explanatory. Breath-taking scenery, whether natural or manmade, is seen not only in the mountain but also along the seashore - the wooden footpath in the East Dam of High Island Reservoir, a cofferdam of some 7000 dolosse, s-shaped hexagonal rock columns, Po Pin Chau and the like. As you walk along the High Island Geotrail towards the sea, you can see Po Pin Chau, which looks like a piece of cake. It was once part of Fa Shan, but was cut away from it because of years of wave impact, giving the flank of Po Pin Chau a row of sea stacks that look as if they were cut with a knife with a serrated blade. Don’t miss out on the wooden bridge at the east dam, which allows you to take a close look at the sea cave. Yet what steals the limelight is Biu Tsim Kok, a semi-circular cape on the north side of the East Dam. The hexagonal rock columns surrounding it give the geological landform a picturesque beauty, making it a popular social media check-in spot among hikers. Biu Tsim Kok overlooks the entire East Dam and looks out on Long Ke Wan and Tsang Pang Kok Tsui in the distance. It is also one of the few places that offer an aerial view of the hexagonal rock columns.