Capitol Lake is an artificial lake located in Olympia, Washington, adjacent to the Washington State Capitol. Created in the 1950s, it was designed to enhance the beauty of the state government buildings and provide recreational opportunities for residents and visitors. The lake covers approximately 260 acres and is surrounded by parks and walking trails. It serves as a habitat for various wildlife species and is a popular spot for activities such as kayaking, fishing, and birdwatching. Efforts are ongoing to manage water quality and preserve the natural environment around the lake.