Walking down into Kourtaliotiko feels like entering a hidden world. The wind roars through the canyon walls above, but down at the bottom, you are met with rushing turquoise springs and a spectacular waterfall tucked inside a narrow stone cavern. To reach the ultimate swim spot, you will need to wade and swim against a gentle current through the refreshing, chilly river water. It is a powerful, immersive experience that connects you directly to the raw elements of the island.