There's one major tourist sight on the island: the Grotta del Genovese, a cave containing prehistoric art. Other than that, Levanzo isn't an action-packed destination, but it is very pleasant. Visitors can, swim, sunbathe and enjoy the island atmosphere. If you're visiting the cave, you'll find an excursion to Levanzo can comfortably fill three or four hours, and it would be quite easy to spend a whole day exploring and relaxing. Note that during the peak summer season of July-August the islands fill up with holiday-makers and you'll find a different atmosphere.