This is Kauai's most popular kayak activity. The Wailua River is perfect for kayaking and you'll paddle 2 miles each way up to a trailhead accessible only by boat. From here, you'll hike through a Hawaii Jungle for 1 mile until you arrive at a beautiful waterfall. The tour option includes a 1 hour stop here and you'll have to time to take and swim and absorb this amazing setting. Return the way you came and be back after a 5 hour tour. For most people this is certainly an adventure! It's 4 miles of paddling and 2 miles of hiking roundtrip. The hiking portion requires a few stream crossings and you'll need to navigate some rocky and slippery spots! It's well worth it, just understand what you are getting yourself into. The Wailua River Kayak and Waterfall can be done as a guided tour or on your with a kayak rental. Please specify which one you prefer when making a reservation. See you on the water!