Northwest — Porto Moniz
Levada da Ribeira da Janela
Also known as Ribeira da Janela tunnel walk · Levada da Central da Ribeira da Janela
The far northwest's epic, and a deliberate exception on this list: the Levada da Ribeira da Janela is not a classified PR trail, but it is one of the most ambitious tunnel walks on Madeira. The channel follows the right bank of the Ribeira da Janela — the longest river on the island — deep into a cliff-walled valley, the path hugging the inside wall above the gorge. Its centrepiece is a tunnel of more than 1,200 m, pitch-dark, dripping and partly flooded, with waterfalls spilling inside; in all there are roughly seven to nine tunnels. Crystalline pools punctuate the route, some deep enough to swim. Distances vary sharply with the chosen variant: about 11.5 km one-way along the levada, a long ~22.8 km full out-and-back, or roughly 16 km looped via the Vereda do Galhano. Edges are crumbly and exposed — for sure-footed hikers only.