A swim in a rushing waterfall that collects in a clear pool is one of those experiences that forms a basis for great stories told after returning home. Kauai is a fantastic place for waterfall swimming, with options to be found at Princeville Ranch to the north and hidden gems like the Secret Falls along the Wailua River to the east. Many ATV, zipline and kayaking tours stop for quick dips in some of Kauai's best waterfall sites, and many waterfalls are safe for children to enjoy as well.