The Smith's Kaua'i Fern Grotto tour begins with a leisurely ... Some described the boat ride and walk to the grotto as relaxing and lovely, thanks to the lush scenery and friendly guides, while ...

so make sure you are comfortable on a boat before you pay to see the cave. Rides inside the grotto typically last five minutes, and the best time of day to visit is between noon and 2 p.m. when ...