On Tap Mun (a.k.a. Grass Island), tourists can get a good view of the east ridge of Nam She Tsim (a.k.a. Sharp Peak). It is the path that hikers usually choose to go downhill. (See south ridge of Sharp Peak.)
At the end of the ridge is Tai Long Tsui (大浪咀), where very few people can get there after an exhaustive descent from the top. You will never regret it if you can reach the end.