HomeMassachusettsCambridge › Central Rock Gym - Harvard Square

Central Rock Gym - Harvard Square

4.4 ★★★★☆ 122 Google reviews · Climbing gym in Cambridge, Massachusetts

Hosts birthday parties Auto-belays Yoga & fitness

Indoor climbing destination also offering yoga & fitness classes.

Plan your visit

  • Gear rental nearly every climbing gym rents shoes (~$5–8 typical) and chalk; harness rental is often bundled with a ropes pass
  • Waiver always required at climbing gyms — sign it online before you go to skip the front-desk line
  • First timer? bouldering needs zero experience — rent shoes and walk in; staff will point you at the easiest problems
  • Auto-belays mentioned here — clip in and climb ropes solo, no partner needed
  • Yoga & fitness mentioned alongside the climbing — ask about the class schedule and what a pass includes
  • Ages 0–18 — the gym's own stated range
  • Memberships available — worth asking about if you'd climb more than a few times a month
  • Today see hours ·
  • Phone (617) 714-3024
  • Website centralrockgym.com

Hours

Monday 6 AM–10 PM
Tuesday 10 AM–10 PM
Wednesday 10 AM–10 PM
Thursday 10 AM–10 PM
Friday 6 AM–10 PM
Saturday 9 AM–7 PM
Sunday 9 AM–7 PM

Hours can shift for holidays, competitions, and youth-team practice — worth a quick check before a special trip.

What's inside

Walls and programs at Central Rock Gym - Harvard Square, confirmed by climbers' own reviews.

🪨 Bouldering Gyms 8 mentions

“The boulder sets were pretty good but not great, the mats were quite stiff and there weren’t a ton of down holds but overall it was a good experience”

All gyms with bouldering gyms →

🧘 Climbing + Yoga & Fitness 7 mentions

“Free chalk to use, gym, equipment, and cardio equipment.”

All gyms with climbing + yoga & fitness →

What climbers say again and again

The things reviewers bring up again and again across 122 Google reviews — with their own words as proof.

🧘 yoga & fitness included 6 mentions

“Yoga room and limited weights.”

😊 friendly staff 4 mentions

“Staff was so friendly and great!”

café & hangout space 2 mentions
🤝 welcoming community 6 mentions

“Also there’s a community chalk bag which was sweet.”

From the reviews

The routes use very different skills, like crimps, foot balancing on a slab, dynamic moves, slopers, etc. This wide range of settings was really nice. The gym is very spacious and there are many routes with levels varying from VB to V10 (I didn't pay much attention to the high level though).

★★★★☆ — Paula, May 2023

Great gym located right by the T stop. Staff are very nice. There are different level bouldering routes.

★★★★★ — Jaye, Feb 2023

Did Cambridge/Boston need another climbing gym? Not really. But with their H square location, CRG finally filled a much needed niche of "convenient via the T" climbing in the area. Per usual, setting is creative, the space is beautiful (but packed during the afternoons). Yoga room and limited weights.

★★★★★ — Dj, Feb 2024

Phenomenal bouldering, Location large number of problems of varying difficulty from beginner to expert. Free chalk to use, gym, equipment, and cardio equipment. Parking is difficult to find but aside from that great location.

★★★★★ — Mark, May 2025

Excerpts from public Google reviews. Read all 122 reviews →

Birthday parties at Central Rock Gym - Harvard Square

Central Rock Gym - Harvard Square hosts birthday parties — confirmed on their own site. Climbing parties come with staff who handle the harnesses and belaying, so parents can mostly watch. One thing that's different here: every guest needs a signed waiver — send the gym's waiver link to the other parents when you send invites, or check-in day gets slow. Packages, party rooms, and pricing change often, so check the current options and book ahead — weekend slots go fast at popular gyms.

Check party packages

Where to find Central Rock Gym - Harvard Square

20 Brattle St, Cambridge, MA02138

Get directions Instagram · Facebook

Climbing gyms near Central Rock Gym - Harvard Square

Bouldering Project - Somerville

4.4 ★★★★☆ 822 reviews

12A Tyler St, Somerville, MA

Hosts birthday parties Kids classes & camps Yoga & fitness spotless & cleanyoga & fitness includedgreat route setting

Roomy indoor rock climbing gym also featuring fitness classes, cardio equipment & a weight room.

under a mile away

Boston University Fitness and Recreation Center

4.3 ★★★★☆ 109 reviews

915 Commonwealth Ave, Boston, MA

Hosts birthday parties Yoga & fitness Adaptive climbing spotless & cleanyoga & fitness included

Massive, multilevel gym at Boston University offering a wide range of equipment, plus pools, and rock climbing.

1.5 miles away

Central Rock Gym - Cambridge

4.8 ★★★★★ 288 reviews

170 Alewife Brook Pkwy, Cambridge, MA

Ages 0–18

Hosts birthday parties Auto-belays Yoga & fitness spotless & cleanyoga & fitness includedgreat route setting

Indoor climbing destination also offering yoga & fitness classes.

1.6 miles away

All climbing gyms in Cambridge, MA →

Listing verified July 2026 from public business records and climber reviews. Something out of date? Report a correction. Own this gym? Claim your listing — it's free.