Oso Flaco Lake is a natural lake located in California, near the coastal town of Oceano. It is part of the Oso Flaco Lake Natural Area, which features diverse ecosystems, including wetlands and coastal dunes. The lake is a habitat for various wildlife species, making it a popular spot for birdwatching and nature walks. Visitors can access Oso Flaco Lake via a boardwalk that leads through the surrounding marshlands. The area is known for its scenic beauty and offers opportunities for photography and outdoor recreation. Nearby attractions include the Oceano Dunes and the Monarch Butterfly Grove.