TheGrotta dell' Arco is a large, shallowcave on the island ofCapri,Italy. It faces east, and is situated about 240 mabove sea level, under the cliffs which are south-east of theCastello Barbarossa. The cave is about 85 feet (26 m) in height and may have resulted from the great landslide which occurred at the east ofMonte Solaro.[1]