What a nice idea!
A farm close to where we live issued the same (almost) initiative as they had too much plums on the trees and instead of throwing them away or let them rot on the trees, they asked for people to come and harvest them for free, giving in some kilograms and bringing home the rest with a nice dinner altogether.
I was realy tempted to go not just for the easy plums BUT for the idea of contributing with my work to the good of a local farm and getting to know other people like-minded.
Unfortunately a friend of Mary was approaching at the same time and I had to go and pick her up at the train station having dinner together so I could not do it but the next time....
It is a pity you couldn't go, but at least you know to keep your eye out in the future.
It is really good for Smallsteps (and kids in general) to take part in these activities, so they get a real sense of where food comes from, rather than the shops. Finland is pretty natural in this regard, so she gets to go berry picking on walks around the neighborhood :)