Canyon introduction: There are two hiking routes to choose from when visiting Mount Olga, one is the Valley of the Winds Trail (Valley of the Winds) and the other is the Walpa Gorge Trail (Walpa Gorge). The Valley of the Wind Trail is about 7.4 kilometers long and takes about 3 hours to complete. The Valpa Canyon Trail is relatively easy, about 2.6 kilometers long and takes about 1 hour to complete.