Kauai Sights

Fern Grotto

  • Rte. 56 Map It
  • Kapaa
  • 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.

Sight Information


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

Map It



Website: smithskauai.com

Sight Details:

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

Updated 01/24/2014


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