Wiñay Huayna (Quechua for "forever young") is an Inca ruin along the Inca Trail to Machu Picchu. It is built into a steep hillside overlooking the Urubamba River. The site consists of upper and lower house complexes connected by a staircase and fountain structures. Above and below the houses the people built areas of agricultural terraces, which are still visible.
It is located on the route of the Inca Trail, 3.3 km as the crow flies (straight line) south-southeast of Machu Picchu, among Puyupatamarca and Intipunku (the 'Sun Gate', entrance to Machu Picchu).
On foot, between Wiñaywayna and Machu Picchu are 7 km.