There are four main islands, Mallorca, Menorca, Ibiza and Formentera. In addition, there are over 50 small islands, mostly uninhabited. What makes these waters especially attractive for a yachting holiday are the numerous deep inlets or "calas" with secluded sandy beaches and crystal clear water. They provide ideal anchorages in the summer season. Each of the islands has its own charm and character, which is best discovered from the sea. The rough coast of Menorca, the mountain ranges of Mallorca towering above the sea, quietly idling Ibiza, the left-aside Formentera with its beaches matched only by the Caribbean.