Important freshwater habitats in the country are the highland forests and wetlands (both forested wetlands and water bodies such as rivers and lakes. Forests in the highlands, often referred to as natural ‘water towers’ because of their water catchment function, help provide us with continuous clean supply of water. They are the source for most of the country’s water resources. Wetlands provide a range of natural ecological and hydrological functions therefore they have important roles in water supply, water purification and flood control.