A Full Day or 2 Day Private Tour through the amazing landscapes of the Paiva river, on a 9km walk through the banks of the river and it's wooden walkways built within the natural landscape.The main attraction of this tour is a High Difficulty walk, not suitable for children and people with mobility restrictions. To accomplish the full 8.7km walk you will need good fitness levels and climb or descend several flights of stairs. There is an option to do the half walk through the easier end, and returning to the starting point. This option is easier, and can be discussed with your guide on the day of the tour.As this attraction is far from Lisbon, you may consider making a Night Stop in one nearby city, and touring the nearby region on the second day: Arouca/Aveiro - Visit Arouca and the Aveiro canals. Possibility of visiting Coimbra.Porto - City tour of Porto. Possibility of visiting Guimarães or BragaViseu - City tour of Viseu, or visit the Douro Valley and Wine region.