To get there, three miles north of Guadalupe, turn west onto Oso Flaco Lake Road, this road will dead end at the parking area for this hidden State Park. Oso Flaco Lake Natural Area is a part of Oceano Dunes SVRA, a California State Park. Access is permitted sunrise to sunset throughout the year. The lake is host to a variety of different activities. From hiking, to viewing wildlife habitats, and even to dune buggying, Oso Flaco Lake is your destination.