I wonder where they're getting the data. I assumed OSM but I found at least one place on this map that I couldn't find on OSM or in All the Places (but it is on Google Maps).
If anything it seems to err on the side of false positives. A lot of these places seem to be traditional gyms or trampoline parks that I don't think have any bouldering walls.
If anything it seems to err on the side of false positives. A lot of these places seem to be traditional gyms or trampoline parks that I don't think have any bouldering walls.