A Blue Cave in the province of Belluno? Well yes, this small cave is hidden in the woods of the Valbelluna and to reach it you have to follow a path that starts from the castle of Zumelle.the cave is only half an hour / twenty minutes walk, the most important thing is to guess where to start from. From the top of the castle we descend towards the parking lot and reach the medieval war machines. From here a path descends, obviously without indications, which reaches after ten minutes the asphalted road and the bridge that crosses the torrent Rui.After about 30 minutes of walking, and various contacts with the water we finally arrive at the Blue Grotto of Mel. In summer the sunlight reflects directly on the tumultuous waters creating a game of wonderful colours and shades.