Lake Ainsworth is a freshwater lake located in New South Wales, Australia, near the coastal town of Lennox Head. It is known for its striking blue color, which is due to the presence of natural minerals and organic matter. The lake is surrounded by lush vegetation and is a popular spot for swimming, picnicking, and birdwatching. The lake is also significant for its unique ecosystem, which supports various wildlife, including native birds and fish. Visitors can enjoy walking trails around the lake and access facilities for recreational activities. Its tranquil environment makes it a favored destination for both locals and tourists.