The Lower Peirce Reservoir (Chinese: 贝雅士蓄水池下段) is one of the oldest reservoirs in Singapore. It is located near the MacRitchie Reservoir and the Upper Peirce Reservoir. It was originally created as the Peirce Reservoir but was designated as lower upon the creation of the Upper Peirce Reservoir. It is 6 hectares in size and contains many trees that are over 100 years old. There is a Lower Peirce Trail, which is a 900-metre boardwalk that takes visitors through a mature secondary forest.