A tent catching the last light on a forested ridge
Free · For climbers, hikers and backpackers

Plan the trip.One shared plan, one gear list, and beta that gets better every time somebody comes back.

Everything a trip needs, in one place

Stop planning across five group chats and a screenshot of somebody's guidebook.

1A group of friends hiking up granite slabs together

Start a trip, invite your crew

Pick an objective and share a six-character code. Everyone edits the same itinerary and changes appear live, so nobody is working off a stale screenshot.

2Two backpackers on the trail below Mount Whitney

Split the gear by name

Claim what you are carrying and watch the weight tally per person. No more two stoves, no rope, and a very quiet drive home.

3A hiker standing on granite above the clouds at sunset

Log it, and pass it on

Tick the route in one tap. Write the long version in a journal with photos and a private layer only you can read, then leave conditions for whoever goes next.

Whatever gets you outside

Multi-pitch routes, long trail days, and everything in between.

A climber on a granite wall with Yosemite Valley far below

Beta that does not go stale

Guidebooks are printed once. Conditions change every week: snow on the approach, a block that fell off, a bolt that walked.

  • Dated conditions reports, with anything older than a season visibly marked stale
  • Suggest a correction on any route, and see what the crew has already flagged
  • Every edit is versioned, so a bad change is always reversible
  • Links out to Mountain Project and AllTrails rather than pretending we replace them

Featured routes

Written up pitch by pitch, with gear, waypoints and photos. See all routes.

Recently on Cairn

Real activity from people using it.

Two hikers looking out over a valley filled with cloud

Your next trip starts here

Free, no ads, and your private journal notes stay private. Make an account and bring your partners along.

Create a free account