Queshuachaca, consisting of ropes made of grass and spanning the Apurimac River near Huinchiri, in Quehue District, Canas Province, Peru, is the last remaining Inca rope bridge.

Even though there is a modern bridge nearby, the residents of the region keep the ancient tradition and skills alive by renewing the bridge annually, in June.

Several family groups have each prepared a number of grass-ropes to be formed into cables at the site, others prepare mats for decking, and the reconstruction is a communal effort.

In ancient times the effort would have been a form of tax, with participants coerced to perform the rebuilding; nowadays the builders have indicated that effort is performed to honor their ancestors and the Pachamama (Earth Mother).

According to en.wikipedia