We took a trip to see one of the world's natural beauty spots on the Adriatic. We were sailing near the Vis islands and heard about this blue grotto. For those unfamiliar with the term, a blue grotto is a water-logged sea cave, and during certain times of the day light reflects from the cave floor illuminating the water and cave bright blue. The light comes in through a hole in the wall caused by years of erosion from the constant crashing of the waves. At one point this underwater hole was the only entrance until 1884 when they made another entrance big enough for little boats. As we entered the cave we all had to sit on the boat floor and duck to avoid hitting our heads. The boat driver even had to time the wave just right so we could fit through the man made hole. Once inside the cave the water was about 30ft. deep and walls extended 45ft high. It was really cool and an experience we won't soon forget.
Andrew
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