These include the smaller, warmer and more exposed Green Grotto on the south side of the island and the famous Faraglioni. A stunning natural rock formation that juts dramatically out of the sea ...

As its name suggests, Kaua'i's Fern Grotto is a natural lava rock grotto covered in hanging ferns and tropical foliage. This special place was once the birthplace of the island's ali'i ...

Not only is the pond and rock entry inviting ... and while its earthy tones blend in with the cemetery's serene natural landscape, the cave interior hides something truly spectacular.