Sign your waiver before you arrive First Visit $17 · rentals included
Friends climbing and hanging out at Mosaic Boulders

Berkeley's independent bouldering gym on Telegraph

A climbing community steps from UC Berkeley.

Climb. Study. Hang out. A welcoming third place for beginners, students, faculty, staff, locals, and experienced climbers.

Your third place

More than a gym.

Home is home. Campus is campus. Mosaic is where your day continues.

Climbers at Mosaic Boulders
01

Climb.

Head setter Randy and the Mosaic setting team create fresh problems every week, with beginner-friendly white tags and projects for experienced climbers.

Mosaic Boulders community study table
02

Study.

Bring your laptop, settle into the community table, and make Mosaic part of your day.

Mosaic Boulders patio and social space
03

Hang out.

Meet climbing partners, stay after your session, relax on the patio, and become a familiar face.

Why Berkeley climbs here

Easy to start. Hard to leave.

01

Friendly people.

Come solo or with friends. Mosaic is built for conversation between climbs.

02

New climbs weekly.

Head setter Randy and the setting team keep the walls fresh with new problems every week.

03

One block from UC Berkeley.

Walk over between classes, after studying, or when you need a reset.

04

Coalition gym access.

Qualifying members get two free monthly visits to each of seven Northern California partner gyms.

Community 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 →
Mosaic Boulders climbers socializing
Meet people between climbs.
Mosaic Boulders social patio
Hang out before or after class.

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

Partner gyms

Your membership goes beyond Berkeley.

Qualifying Mosaic members receive two free visits each month to each Coalition partner gym.

Bridges Rock Gym
El Cerrito
The Peak
Fremont
Session Climbing
Santa Rosa
Agility Boulders
Capitola
Granite Arch
Rancho Cordova
Rocknasium
Davis
Gold Crush
Grass Valley

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
Mosaic Boulders difficulty wheel showing grade tag colors

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.

Summer Hours12–10
Monday–Friday12 PM–10 PM
July 4Closed
Questionsstaff@mosaicboulders.com

Upcoming events

Big nights on Telegraph.

Climbing, music, creative energy, and community nights throughout the school year.

September 4

Back-to-School Blowout

Celebrate the new semester with climbing, music, giveaways, food, and one of our biggest community nights of the year.

October 29

Dynoween

Costumes, dyno challenges, Halloween climbing, and prizes throughout the evening.

November 13

Berkeley Pulse Creative + Climb Party

An evening celebrating Berkeley creativity with climbing, local artists, music, and community.

Presidents Day Weekend

Telegraph Turn Up Returns V4

Friday through Monday: four days of fresh climbs, community events, competitions, and Telegraph District energy.

Ready?

Start climbing today.

Try Mosaic for $17 with rentals included, or start two months of unlimited climbing for $99.

Waiver First Visit $17