Located in Rancho Santa Margarita on the boarder of Mission Viejo, Oso Lake is easily accessible to all units. The camp features a 100-acre lake, 15 acres of land and is surrounded by O'Neil Regional Park.

The Oso Lake facility is currently available to all units for open camping and the council offers organized weekend programs geared towards Webelos Scouts through First Class.  Fishing Merit Badge, Water Conservation and Paleontology programs are also being explored and developed.