Mosaic Boulders 1
Extreme
Mosaic Boulders 2
Mosaic Boulders 3

Mosaic Boulders

Open

Southside, Berkeley

๐Ÿง—"Masterclass in stacking holds and blockers"
๐ŸŽ“Official partner gym for Cal Climbing
๐Ÿง˜Gender-neutral bathrooms + water bottle refill station

Mosaic Boulders is a cozy neighborhood climbing gym where thoughtful routesetting and a student-friendly vibe make every session feel like hanging out with friends. Whether you're projecting your first V3 or just need a study break on the outdoor patio, the welcoming community keeps things fun and unintimidating.

Student-friendly bouldering
World-class routesetting
Study area with WiFi
Outdoor patio hangout