Lau Shui Heung Reservoir (流水響水塘) has long lost its irrigation function for agricultural lands nearby as Hong Kong’s farming lands have become a rarity. But the biodiversity there plus the picturesque scenery has made the reservoir area a lovely place for leisure walking.
There is not a path along the reservoir, but a country trail starts from and ends at the reservoir which is about 2-hour walk. 
The walk is pretty easy with very mild climbs and has alternative dirt, stone and concrete trail. The middle part of the trail is concrete, after you reach an intersection and a pavilion. Follow the sign pointing to Tai Po Road, and go down the slope a bit, before turning right, when you see this sign, into a nice dirt path leading to the reservoir. 
This last part of the trail in the reservoir area is very green and captivating.
How to get to Lau Shui Heung Reservoir
The easiest way is take a taxi, with a fare of about HK$60, from Fanling train station. Alternatively, you can take minibus No. 52B, from Fanling train station, the services of which are far from frequent. Get off at the junction of Lau Shui Heung Road and Hok Tau Road, and walk along the Lau Shui Heung Road towards the reservoir. Or simply tell the minibus driver to drop you off for going to Lau Shui Heung Reservoir.
To return to Fanling train station, since it would be hard to hail a taxi, just walk back to the junction, and along the Hok Tau Road towards Hok Tau. You will pass by a BBQ site (Hok Tau BBQ Area) on the way.
When you see this road sign pointing in the direction of Hok Tau Wai, follow it and the bus stop for No. 52B will be in sight. 
But be prepared to wait at least half an hour for the minibus as the services are not frequent.
Just next to the road sign (Hok Tau Wai), is a store selling noodles and desserts with outside seating. Its bean curd dessert and sweet potato dessert are excellent. Give it a try before heading back to the city.
