PRC37 SMI
Rota da Água - Janela do Inferno
OpenLast checked September 27, 2026
The circular half of the Rota da Água, from the Casa da Água trail point above Lagoa to the Janela do Inferno, a vertical rock face in the Ribeira Seca. The route goes through water tunnels — a torch is required — past a catchment house and along the stream before returning. Easy in grade, 7.6 km, two and a half hours.
Route facts
- Start and end
- Rota da Água - Janela do Inferno
- Length
- 7.6 km one way
- Official walking time
- 2 h 30 min
- Difficulty
- Easy
- Route type
- Circular
- Highest point
- 402 m
- Lowest point
- 220 m
- Start coordinates
- 37.74627, -25.53731
Figures as the regional trail service publishes them on the trail's own page. A row is missing where the official sheet does not state it.
Before you go
- This route returns to its start, so nothing has to be arranged at the far end.
Plan the day
Other trails nearby
- PR41 SMIRota da Água-Pedras BrancasClosed
- PR42 SMIRota da Água - Entre Túneis e CondutasOpen
- PRC13 SMIÁgua RetortaOpen