Kranji Marshes is one of the few remaining freshwater marshes in Singapore. Over time, the build-up of sediment and vegetation had slowly turned large portions of the marsh into land. This 56.8 hectare site comprises marshland, woodland, and grassland habitats.The Kranji Marshes Improvement Project was intended to reinstate the marsh as a haven for freshwater birds, to enhance the surrounding support habitats and to provide access and facilities for visitors. Stephen Caffyn Landscape Design, led the team in the design of the environmental improvements and visitor facilities. The project, which incorporated sustainable design, sought to promote awareness of biodiversity and the environment through nature experiences, interpretive signage, environmental art and sculptural elements that would interest and engage visitors. Kranji Marshes is now home to more than 170 species of birds,54 species of butterflies and 33 species of dragonflies, including nationally threatened species such as the grey-headed fish eagle and straw-headed bulbul.