The Elfin Forest Natural Area on the southeastern shore of Morro Bay is a diverse and complex assemblage of natural plant communities that includes coastal brackish marsh, riparian woodland fringe, pygmy oak woodland, grassland, coastal dune scrub and oak manzanita association. It supports a documented 25 species of mammals, over 110 kinds of birds, and 11 species of reptiles and amphibians. Chumash middens occur throughout property.
Public access is limited to foot traffic.
Trails through the Elfin Forest provide many oportunities for passive recreation and outdoor education. In addition to its habitat and biological diversity, the Elfin Forest is an important buffer between residential development and the Morro Bay estuary that marks the northern end of a greenbelt around the community of Los Osos. In 1987, legislation authored by Assemblyman Eric Seastrand provided funding to purchase 51.2 acres of the Elfin Forest as an addition to Morro Bay StatePark. In 1994, as a result of the collaborative efforts of SWAP, San Luis Obispo County, the State Coastal Conservancy and the State Lands Commission, the remaining 38.9 acres were acquired as an ecological reserve. While there are three governmental agencies with ownership of portions of the Elfin Forest, San Luis Obispo County acts as the lead agency in the administration of the Elfin Forest.