Secret Falls in Kauai - With the help of a hand-drawn map and a send-off in the right direction from Wailua Kayak trekked by kayak and foot to Secret Falls. It was truly the best part of the trip! We paddled two miles down the Wailua River until we reached a spot that slightly resembled a circled area on our map, and anchored our boats. We crossed the river, climbed up a small hill, and hiked for about an hour. Up ahead was Secret Falls, and it was completely secluded.