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 ...

Some say it’s haunted. Others say an evil spirit lives in the cave. The Fern Grotto is a geological wonder of Kauai where ferns grow upside down from the roof of the grotto and was originally ...