How the climbing communities compare
A few giants dominate — r/climbing, r/bouldering and r/climbharder together account for 91% of the combined membership. Size and activity don't line up perfectly: r/climbing has the most members, but r/bouldering gets the most new posts (about 12 a day, against 1 in r/climbing). Per member, the liveliest is r/indoorbouldering: 3.0 posts a day from 46.2K members — a smaller crowd, but an engaged one. The oldest is r/climbing, founded in 2008, and every community here is more than five years old — this is a long-established corner of Reddit.
The 7 biggest climbing subreddits
- Cr/climbing ↗ 1,640,620 members · ~1.4 posts/day · +585 since Oct 26 · since 2008
The home of Climbing on reddit. And yes we are scared of falling.
- Br/bouldering ↗ 437,986 members · ~12 posts/day · since 2009
Cordless and proud.
- Cr/climbharder ↗ 178,510 members · ~3.9 posts/day · since 2010
Reddit's rock climbing training community. Dedicated to increasing all our knowledge about how to better improve at our sport.
- Cr/climbergirls ↗ 91,867 members · ~5.9 posts/day · since 2013
A sub for women and non-binary climbers and their allies
- Ir/indoorbouldering ↗ 46,243 members · ~3.0 posts/day · since 2017
A subreddit for the indoor bouldering community. Anything related to indoor (and outdoor) goes. From advice on which gym to visit to videos of world cup IFSC climbers, you can find it all here.
- Rr/RockClimbing ↗ 44,508 members · since 2008
This is the smaller rock climbing community on reddit. Check /r/climbing for more content.
- Cr/CompetitionClimbing ↗ 33,666 members · ~1.6 posts/day · since 2016
A comprehensive subreddit for all things competitive climbing.
Choosing where to post
For beginner questions, r/indoorbouldering is the natural first stop — it exists for advice, and roughly 3.0 new threads a day keep it moving. Competition for attention differs a lot: r/climbing has 1.6M members but only about 1.4 new posts a day — roughly one new post for every 1.2M members — while r/bouldering gets about 12 a day, one for every 36.2K. A strong, well-made post therefore has more room to be seen in r/climbing; r/bouldering is better when you want quick replies.
Big subreddits give a post the widest audience, but they also bury it quickly; the mid-sized communities on this list are usually friendlier for questions and first posts. Always read the rules in the sidebar first — each community is run by its own volunteer moderators. Our guide to searching Reddit explains how to dig through any of these communities, and the subreddit info tool gives you the stats of one we don't list.
Frequently asked questions
Which climbing subreddit has the most members?
r/climbing is the largest, with 1,640,620 members, followed by r/bouldering (438K) and r/climbharder (178.5K).
Where are the most new climbing posts?
By new posts per day, r/bouldering leads with about 12, ahead of r/climbergirls (6). Counts are averages over the last seven days.
Which climbing subreddit is best for questions?
r/indoorbouldering is the one built around questions and advice, with about 3.0 new posts a day. Check its rules and search it first — common questions have usually been answered.
How many climbing communities are on this list?
We list 7 active, safe-for-work climbing communities with at least 25,000 members each, 2.5M members in total (people can be in several). Reddit has many smaller ones too; our guide on searching Reddit shows how to find them.
What is the oldest climbing subreddit?
r/RockClimbing, created on Jul 12, 2008.
Are these climbing subreddits safe for work?
Yes. Every community on this page is public and not marked 18+ by Reddit, and we filter out communities whose name or description points to adult content.
Data: Reddit's public subreddit search and the Arctic Shift archive (Nov 6, 2026), growth from SubMouse's weekly snapshots. Member counts of communities outside our Top 1000 come from the archive and can lag a little. Not affiliated with Reddit.