I was on a small(ish) hike/walk today.
Someone local put out coffee and schnapps for people walking by - it was a path off the road and a nice bench to stop and enjoy the sunshine for a bit. The blue box is for people to leave money as they see fit. The assortment was complete with some cream and sugar :)
Coffee + schnapps (and tea and jagermeister lol :D) is a common winter drink here but i just cant really get into xD.