TrailfinderYour Guide to Bay Area Parks & Trails

Back to Main Map


Trailfinder sponsored by


Quarry Lakes Regional Recreation Area

Park managed by: East Bay Regional Park District

Add a Review FavoriteLoadingAdd to Favorites




by Transit & Trails


by Transit & Trails

Wildlife Sightings

by iNaturalist



At this Park


519 acre Park managed by: East Bay Regional Park District

On hot summer days, Horseshoe and Rainbow Lakes cool off eager swimmers and waders, while the wildlife habitat is a draw all year round.

Once the site of gravel mining operations, the quarries have long since been flooded and used for groundwater recharging. Horsehoe Lake and Rainbow Lake are open to picnicking, swimming, and non-motorized watercraft, while Willow Slough and Lago Los Osos are reserved for wildlife habitat.

Official Park Page
powered by Flickr

Get Involved:Become a trailblazer, Review this Park, Log Wildlife Sightings, and Submit Photos.

Leave a Comment