My father-in-law has an acre of beautiful wild land. It was once a quarry, and in the thirty years he has owned it, he has let it grow into a young woodland. The topsoil is still quite thin, but every year a new layer of leaves are being added, and the greenery grows higher and higher.
My wife and I use the space to forage for nettles, cherries, hazelnuts, wild blackcurrant, elderflowers and berries, wild rose and are still discovering more!
I took the opportunity last time I visited to pick some of the nettle tops. We cut them back periodically so we always have a supply of new young nettles. My wife enjoys nettle tea, but I prefer to cook them up for a delicious saag.