Century after century, millennium after millennium, with methodical slowness, the waves of the sea have eroded the limestone coast of Gargano, shaping natural landscapes, creating gaps, fissures, and tunnels. There are about twenty sea caves that can be explored, but around ten of them inspire the greatest wonder, the same ones featured on tourist postcards in every shop in Vieste. The names of the caves come from the unique characteristics of each, just as they captured the attention of their discoverers, who continue to pass them down: Grotta Campana Grande, Grotta dei Contrabbandieri, Grotta delle Rondini… During the summer season, tourist organizations allow visitors to explore them by large boats. The tours take place in the morning or in the afternoon. The morning visit is ideal, as it allows you to fully appreciate their splendor thanks to the sunlight, which at this time of day illuminates the interior of the caves with thousands of shades of color.