01
Climb.
Head setter Randy, a USAC Level 4 Routesetter, and the Mosaic setting team create fresh problems every week, with beginner-friendly white tags and projects for experienced climbers.
Berkeley's independent bouldering gym on Telegraph
Berkeley's climbing community.
Climb. Study. Hang out. A welcoming third place for beginners, students, faculty, staff, locals, and experienced climbers.
Why we exist
A gym built for members, not margins.
Mosaic Boulders isn't here to turn a profit—and we never plan to be. Every dollar that comes in goes back into the walls, the setting, the space, and the community. Our focus is simple: creating the best possible climbing experience for our members.
We want Mosaic to be more than a place to climb. We want it to be a true third place—especially for Cal students and the wider Berkeley community. Somewhere between campus and home where you're known, not just another membership number.
Join us, climb with us, and help us build something special.
02
Study.
Bring your laptop, settle into the community table, and make Mosaic part of your day.
03
Hang out.
Meet climbing partners, stay after your session, relax on the patio, and become a familiar face.
Inside Mosaic
See the space before you climb.
High walls, natural light, a patio, study space, and the Telegraph energy that makes Mosaic feel different from a typical gym.
Why Berkeley climbs here
Easy to start. Hard to leave.
Friendly people.
Come solo or with friends. Mosaic is built for conversation between climbs.
New climbs weekly.
Head setter Randy and the setting team keep the walls fresh with new problems every week.
One block from UC Berkeley.
Walk over between classes, after studying, or when you need a reset.
Coalition gym access.
Qualifying members get two free monthly visits to each of seven Northern California partner gyms.
The Mosaic Cup
Berkeley's team climbing challenge.
A team climbing challenge for Mosaic members. Build a team of 3–6 and compete this fall, starting October 19. More specifics coming soon.
Learn About the Mosaic CupCommunity first
Come for the climbing. Stay for the people.
Students, graduate students, faculty, staff, locals, first-timers, and regulars share the same walls, the same patio, and the same weekly rhythm.
See the community →
Google reviews
Loved by Berkeley climbers.
4.7 stars from 64 Google reviews.
Tim
“It is a smaller gym but still had a great time, doesn’t get too crowded, loved all the sets.”
Alok Thakrar
“High quality sets, and good staff support and community.”
Google reviewers
Climbers consistently highlight the route quality, helpful staff, community atmosphere, and easy Telegraph location.
Start climbing
Simple ways to begin.
First visit
$17
Try Mosaic once. Rental shoes are included with your first visit pass.
Buy First Visit Pass See all passes- Beginner friendly
- No partner required
- Start with white tags
Best first step
$99
First two months for new members. Make Mosaic part of your week.
Become a Member See all memberships- Unlimited climbing
- Free rental gear
- Bring one first-time Mosaic visitor free every visit
- Two free visits monthly to each of seven partner gyms
- 30% off retail
New Cal students
$69
First two months of unlimited climbing for new Cal students.
Get New Student Special See all memberships- Unlimited climbing for two months
- No initiation fee
- Free rental gear
- Free admission for one first-time Mosaic guest per visit
- Must be in your first year at Cal
Membership includes
Everything in your membership.
Unlimited climbing.
Climb as often as you want with no day passes or visit limits.
Bring a guest free, every visit.
One first-time Mosaic visitor climbs free each time you come in.
Up to 14 partner gym visits a month.
Two free visits monthly to each of seven Coalition gyms across Northern California.
30% off retail.
Save on shoes, chalk, and gear at the Mosaic front desk.
$15 referral credit.
Earn $15 store credit when a friend you refer becomes a member.
Partner gyms
Your membership goes beyond Berkeley.
Qualifying Mosaic members receive two free visits each month to each Coalition partner gym.
When you arrive at a partner gym, tell the front desk you're a Mosaic member, share your name, and show your member QR code.
First Visit Guide
Everything you need before you walk in.
Buy your pass, sign your waiver, learn how bouldering works, and start with beginner-friendly white tags.
Open First Visit Guide
Visit us
One block from UC Berkeley.
2369 Telegraph Ave, Berkeley
Cross street: Durant.
Climb before class, after studying, or between lectures. Grab boba, hand-pulled ramen, or a beer at Raleigh's before or after your session.
Parking Garage: 2450 Durant Ave. First hour free, then $1/hour for hours 1–3.
Mon–Fri1 PM–11 PM
Member Hours (Mon–Fri)9 AM–1 PM
Sat–Sun11 AM–11 PM
Questionsstaff@mosaicboulders.com
Upcoming events
Big nights on Telegraph.
Climbing, music, creative energy, and community nights throughout the school year.
First Friday: New Student Night
Starts at 6 PM. $10 day passes for everyone. Beer, The Mosaic, and hot dogs on the patio, 7–9 PM.
Dynoween
Costumes, dyno challenges, Halloween climbing, and prizes throughout the evening.
First Friday: LGBTQ+ Climb Night
Starts at 6 PM. $10 day passes for everyone. Beer, The Mosaic, and hot dogs on the patio, 7–9 PM.
Berkeley Pulse Creative + Climb Party
An evening celebrating Berkeley creativity with climbing, local artists, music, and community.
First Friday: Latinx Community Night
Starts at 6 PM. $10 day passes for everyone. Beer, The Mosaic, and hot dogs on the patio, 7–9 PM.
First Friday: New Student Night
Starts at 6 PM. $10 day passes for everyone. Beer, The Mosaic, and hot dogs on the patio, 7–9 PM.
First Friday: Women's Climb Night
Starts at 6 PM. $10 day passes for everyone. Beer, The Mosaic, and hot dogs on the patio, 7–9 PM.
First Friday: Cal Climbing Night
Starts at 6 PM. $10 day passes for everyone. Beer, The Mosaic, and hot dogs on the patio, 7–9 PM.
First Friday: End of Year Party
$5 day passes for everyone. Food, drinks, and DJ on the patio — plus a special staff celebration honoring team members who are graduating.
Ready?
Start climbing today.
Try Mosaic for $17 with rentals included, start two months of unlimited climbing for $99, or $69 if you're a new Cal student.