Explore Activities

Monarch Butterfly Grove

7th Street and Ramona Avenue
Los Osos, CA 93402




The Sweet Springs overwintering site is located in Los Osos along the southwest edge of the Morro Bay estuary. A prominent sign shows the entrance to the trails from the north side of Ramona Avenue. The site is part of an Audubon Nature Preserve, featuring a vegetative restoration project and access trails to monarchs and other scenic areas within the preserve.


  • Free Things To Do
  • Kid Friendly
  • Outdoor Activities & State Parks