Quarry Lakes Regional Recreation Area

This park contains four bodies of water: Horseshoe Lake, Rainbow Lake, Willow Slough and Lago Los Osos. There are many paved trails open to equestrians, pedestrians and bicycles that surround the water. There are no specific staging areas.

Operating Hours

The park opens at 6 am year round and closes at dusk.


There are parking and dog fees except for guide dogs.

Disabled Access

All the facilities at the Niles beach area, the Ensenada Pavilion area, and the Orchard picnic area are wheelchair accessible. The Rock picnic area has wheelchair accessible bathrooms and a drinking fountain but no parking.


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2100 Isherwood Way

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Contact Info

Phone: 1-888-327-2757, option 3, extension 4552 or 510-795-4883