Because of its accessibility, the Wailua River is open to usage for water skiing and kayaking.  But the majority of tourists take motorized boats run by Smith's Motor Boat Service two miles up the river to visit the popular wedding site called the Fern Grotto. The Grotto, famous for over 60 years for its cave of hanging ferns, offers wonderful acoustics for the lovely serenade you will hear performed by the tours' operators.