Whether this is a carpark or a marketplace is a bit tricky I suppose. (What to set on the 'amenity' key) It's certainly *normally* a carpark, but I guess the weekly marketplace could be argued to be more important.

Anyway I noticed this was showing up green in my app, so I have at least removed the leisure=garden tag, which is just wrong. Nice trees, but no garden beneath them. https://www.openstreetmap.org/changeset/134594583  