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Kauai Sights

Fern Grotto

  • Rte. 56 Map It
  • Geological Site

Updated 01/24/2014

Fodor's Review

The Fern Grotto has a long history on Kauai. For some reason, visitors seem to like it. Perhaps it's the serenity of just cruising up and down the river accompanied by Hawaiian music. The grotto itself is nothing more than a yawning lava tube swathed in lush fishtail ferns 3 mi up the Wailua River. Though it was significantly damaged after Hurricane Iniki in 1992 and again after heavy rains in 2006, the greenery has completely recovered. Smith's Motor Boat Services is

the only way to legally see the grotto. You can access the entrance with a kayak, but if boats are there, you may not be allowed to land.

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Sight Information


Rte. 56, just south of Wailua River, Kapaa, Hawaii, 96746, United States

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Sight Details:

  • $20
  • Daily departures 9:30–3:30

Updated 01/24/2014


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Fodorite Reviews

Average Rating

By Lana

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Nov 25, 2005

Weddings at Fern Grotto?

Getting there was a nice boat ride with music and hula dancing. Trekking through the rain forest to get there was okay but the construction and muddy mess took away the beauty of the forest. As for one in their right mind would get married there. Hot, humid, damp and just plain unpleasant for that kind of setting. Overall I'm glad we went. Now I can say we've been there.

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