Tai Lam Tunnel (Chinese: 大欖隧道), running along Tsing Long Highway, is part of Route 3 Country Park Section (R3CPS) and is a transport link between the western New Territories in Ting Kau and Yuen Long.
The Tai Lam Tunnel (Chinese:大欖隧道) on the MTR West Rail Line, at 5.5 kilometres (3.4mi), is the longest transport tunnel in Hong Kong. It was completed in 2003.
A series of barbecue and picnic sites are provided along Route Twisk, the Shek Kong, Pat Heung catchwater and the Tuen Mun catchwater. In addition, there are a lot of trails. For example, the MacLehose Trail and the Kap Lung Forest Trail start from the top of Route Twisk near the Country Park Management Centre. The Twisk Nature Trail near the Country Park Management Centre introduces the natural environment and human impacts in the area.
The fitness trail at So Kwun Wat catchwater provides 14 sets of fitness equipment for visitors and morning walkers.