The Adventure Starts Here
Geohashing is a game of spontaneous adventure generation played around the world since 2008. You will explore random locations, meet fellow geohashers, brave the elements, unlock achievements, and then come back here to document your expedition.
Basically, we take a random point based on the Stock exchange and the current date, and go and have wacky adventures. Think of me as a new kind of adventure capitalist.
|find some more great geohashing quotations here.|
—UnwiseOwl, explaining geohashing to a friend.
How to play?
- Create or log in to an account (returning after a break? all accounts created before 2020-02-02 were deleted; you'll need to sign up again)
- Use a coordinate calculator to give you a pair of GPS coordinates
- Go there (or as close as you can safely/legally get)
- Write about your expedition!
Need more? Keep reading for full instructions, FAQs, history, other people's expeditions...
How does Geohashing work?
Every day, effectively random locations are generated by an algorithm that derives randomness from stock market data. A set of coordinates is generated for every 1°×1° latitude/longitude zone in the world, or graticule. The coordinates might be in a field, a forest, a city, up a mountain, or out at sea! Everyone in a quadrant of the globe gets the same set of coordinates relative to their graticule.
The generated coordinates are used as destinations for adventures, à la Geocaching, or for local meetups. After the fun, please document your expedition: The rest of us would love to read your story, see your photos, and cheer your success (or commiserate with your failure)! Join the other 'spot spotters', be out standing in your field and use this wiki to document the daily coordinates (geohashes) you’ve been to or tried to reach.
The daily coordinates are repeated for each degree all round the planet, but there is also a single globalhash, rare, valued and much harder to reach.
How to geohash:
- Beginner's guide - start here
- Guidelines to follow
- Frequently asked questions
- Map applications that may help you get there
- Geohashing guides on various topics
Other people's expeditions:
- There's a new map for exploring past expeditions and today's geohash: geohashing.win
- We have now reached 15000 expeditions!
- The PHP version underlying the wiki engine software has been updated. Let DanQ know if you spot any new (or old) bugs.
- Happy first anniversary of the wiki's revival, if you count the 'birthday' as the date of the first user account creation plus the announcement on IRC!
- The subdivision geohash is an achievement now.
- SIGSTKFLT is doing a slow rollout of Ribbon2. Add a comment if you see any problems.
- It's now possible to upload and embed GPX tracklogs of your expeditions.
Official xkcd meetups
Based on the title text from the comic that established geohashing, the "official" meetup day was interpreted as being Saturday; that is, the day one would have the best chance of meeting others -- see also Mouseover Day. Additionally it was decided through convention that a good meeting time would be 16:00 local time (4:00 P.M.)¹
However, neither of these are hard rules, and they were formulated at a very different early stage in the sport's history. Nowadays and for quite awhile actually, any date or time can be good (or bad, depending on how many other hashers are near you) for meeting up, especially if prearranged. Note that this only applies to that day’s normal local geohash or globalhash coordinates, if you try to go to an alternate location without telling anyone else, it's highly unlikely you'd meet up with a hasher there (obviously).
¹Or earlier if that would be too close to sunset during the winter, or other quirks of temporal tradition; see your local graticule page for consensus there.
Recent and Upcoming Coordinates
The coordinates for the next Saturday meetups, scheduled for 13 August 2022, will be based on the Dow’s opening price published at 09:30 EDT (13:30 UTC) on Friday 12 August. See timeanddate.com to convert this time to your local time zone.
- Coordinates: Fri 12 Aug* | Thu 11 Aug | Wed 10 Aug | Tue 9 Aug | Mon 8 Aug | Sun 7 Aug | Sat 6 Aug | Fri 5 Aug
* Only known for regions east of 30W longitude. Coordinates for regions to the west announced 13:30 UTC, 12 August.
- View expedition archives for: August 2022 | July 2022 | June 2022 | More...
Gallery of Recent Expeditions
The gallery for each day is added to this page automatically, but pictures are selected to the gallery by us. Any geohasher is welcome to add a picture from that day. Just add your image name in the list at the “add yours” link. If the gallery hasn't been started yet, copy the format from the previous day, or read the how-to. Please also write an account of your expedition, even if only a short one, so that people can click the link on your picture and find out more.
This section documents hash expeditions that geohashers wish they could make, but have not been able to for the reasons stated.