Marina Reservoir is a large body of water located in the heart of Singapore. It was completed in 2008 and serves as a key part of the city's water management system. The reservoir is formed by damming the Marina Channel, creating a freshwater lake that helps to regulate water supply and improve flood control. The reservoir is surrounded by a scenic park and offers recreational activities such as jogging, cycling, and water sports. It is also home to the iconic Marina Bay Sands and the Gardens by the Bay, making it a popular destination for both locals and tourists.