Happy Valley Reservoir is a large water storage facility located in Happy Valley, a suburb of Melbourne, Australia. It was constructed to supply drinking water to the surrounding areas and is part of the Melbourne Water system. The reservoir is surrounded by scenic parklands, making it a popular spot for outdoor activities like walking and birdwatching. The reservoir has a capacity of approximately 2.5 billion liters and plays a crucial role in managing the region's water supply. It also helps in flood control and provides a habitat for various wildlife species. Visitors can enjoy the natural beauty while learning about the importance of water conservation.