Grotto Bue Marino
08022 Cala Gonone NU, Italy
Grotta Bue MarinoIf marine caves are your thing, the Grotta Bue Marino is worth the boat ride or the 40 minute hike from Cala Fuili (itself a 20 minute walk from the road). The Little Mermaid-esque grotto was named for the monk seals ("bue marino" translates to "sea ox") that once called it home. Now, guided tours run a few times every day.