Grass Island or Tap Mun is an island in Hong Kong, located in the northeastern part of the territory. Its area is 1.69 km². Administratively, it is part of the Tai Po District. There are about 100 people living on the island.
Grass Island is located in the northeastern part of the Hong Kong territory, between Mirs Bay and the North Channel. It lies north of the Sai Kung East Country Park on the Sai Kung Peninsula. To the east is Kung Chau, to the south is the South Channel, to the west is Wan Tsai and to the southwest is Long Harbour.
The hilltop of Grass Island is a popular camping site, renowned for the contrast in temperature and wind conditions between day and night. Temperatures drop and winds soar during the nighttime but die down as the day approaches, when the dawn marks the beginning of a temperature rise. It is also well known for providing panoramic views of the surrounding seas, and so provides a brief escape away from the busy city life. The very gentle slopes of the hilltops are a favourite amongst campers, although there is the danger of the bordering cliffs.
The temple complex at Grass Island comprises three temples in two buildings: the first building is a Tin Hau Temple, built in 1737, to which an annex was later added, housing a Kwan Tai Temple. On its left, Shui Yuet Kung is dedicated to Kwun Yam (Guan Yin) and the Earth God. It was built in 1788. The Tin Hau Temple is a Grade II historic building, while Shui Yuet Kung is listed as Grade III.
On festival days, such as Guan Yin's birthday, on the 19th day on the second lunar month, many fishermen arrive at Grass Island to pray for peace and calm. The Tin Hau Festival is celebrated annually on the 23rd day of the third lunar month. In addition, a marine parade is held once every ten years to celebrate the Tin Hau Festival. The temple at Grass Island is one of the two Tin Hau Temples in Hong Kong that have such a marine parade: the other one is the Tin Hau Temple on Leung Shuen Wan (High Island)
There is one seafood restaurant and a number of small tea restaurants on the Grass Island, many of which are known for 'ice-less' ice-cold milk tea and boiled squid dishes. Some fishermen of Grass Island make a living by selling their sun-dried catch. Sun-dried fish and shrimp are popular amongst local tourists.
Other attractions :
- Tap Mun Cave
- Layered Rock
- King Lam School was founded before 1913 and was originally housed in the Tin Hau Temple. A dedicated school building with three classromms was built on the hill in 1957. The school closed in the summer of 2003, due to the low number of students. It is now a Grade III historic building.
- Ngau See Dong, the grave site of a resident buffalo. The skeletal remains of the decomposed buffalo was a spooky sight as it was situated right next to a frequently walked stone path. Although now removed by local officials, the site can still be identified as an unnatural depression into the border of surrounding shrubs.
- The Environmental Protection Department has an Air Pollution Index monitoring station on the island.