Fern Grotto

Fern Grotto is located on the Wailua River in Kauai, Hawaii. Fern Grotto is a geological wonder that is covered in ferns. They grow upside down from the roof. The grotto was formed millions of years ago making it an important historical location too. The greenery is very lush. Many individuals come to Fern Grotto each year in order to see the grotto and its history.

The Wailua River runs its way through the grotto. There is a waterfall as well as green jungle. It can be found on the east side of the island. Wailua River has two main waterfalls. They are known as Opaekaa and Wailua Falls. They run down from Mt. Waialeale. Guests of the park area can enjoy kayaking down the river or a hike along the coast. It is also possible to rent a riverboat that will lead one down the river and to the Fern Grotto.

Many of the river boat tours are run by local residents, who share the history of the Grotto and Hawaii on the ride down. They will explain about King's Highway, Mount Kapu and First Hau Tree. It is also possible to learn hula dancing from many of the tour groups as part of the entire package.