To balance the list of things you can't do in Switzerland (flushing your toilet after 9pm in a block of flats; put paper and cardboard together in the recycling etc) there are many things you can do and lighting a fire in the woods is one of them.
This was on 1. August when we toasted marshmallows. John was very proud of his fire and was sad to have to quench it when we left. perhaps we'll build another one when it's not quite so hot next time...?