The Blue Grotto (or Grotta Azzurra) is the most famous site on Capri, and it's easy to see why. The grotto is a natural sea cave with a small entrance, and it is illuminated in a blue and silver ...

Pull the lever, and you will unlock the Gemstone Cavern permanent upgrade and start each day with 2 Gems. The final Blue Prince permanent upgrade is the Blackbridge Grotto. Some players may find ...