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Fern Grotto

Wailua River State Park

Kauai + Niihau, Hawai'i

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Fern Grotto

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  • The damaged earthen ramp to the right of the boat dock.- Fern Grotto
  • Wailua River State Park.- Fern Grotto
  • Travelers palms.- Fern Grotto
  • Banana flower.- Fern Grotto
  • Pinecone ginger, also known as shampoo ginger.- Fern Grotto
  • Taro plants.- Fern Grotto
  • Taro plants.- Fern Grotto
  • Wailua River State Park.- Fern Grotto
  • A small nearby waterfall.- Fern Grotto
  • A small nearby waterfall.- Fern Grotto
  • A small nearby waterfall.- Fern Grotto
  • The observation deck.- Fern Grotto
  • The observation deck.- Fern Grotto
  • The Fern Grotto, now much smaller than it once was.- Fern Grotto
  • The Fern Grotto in Wailua River State Park.- Fern Grotto
Overview + Weather
Pros: 
Great botanical gardens. Waterfall.
Cons: 
Can only access by boat.
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Region:
Kauai + Niihau, HI
Congestion: 
Low
Pets allowed: 
No
Year round: 
Yes
Parking Pass: 
None
Current Local Weather:
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Adventure Description

Adventure Description

Pro Contributor

The Fern Grotto is located in a unique, albeit small, state park along the Wailua River. The grotto can only be accessed by boat, kayak (normally) or stand-up paddleboard. The location is named for a large mouth cave that has been reduced in size over the last few decades by floods and a ceiling collapse. It once hosted weddings and live music, but it is now only visible from an observation deck. The setting is very pretty with the many ferns and vines growing around the entrance, though there is apparently much less vegetation now than before Hurricane Iniki in 1992. There is a smaller waterfall near the grotto and a botanical garden lining the pathways between the dock and the grotto. You can take boat tours here or use SUP's currently, and eventually visitors will be able to kayak in again after repairs are made from the April 2018 floods. Don't use the boat dock if you are on a watercraft because that is where the large barges dock; instead, there is a earthen ramp to the right of the wooden dock for smaller vessels.

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(36 within a 30 mile radius)

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