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Lagoa (Santa Cruz)

Janela do Inferno — circular route on the Island of São Miguel (PRC 37 SMI)

Routes

Hiking trails & Routes

Lagoa (Santa Cruz)

Janela do Inferno — circular route on the Island of São Miguel (PRC 37 SMI)

Hard

4.7

(965)

3,904

hikers

Janela do Inferno — circular route on the Island of São Miguel (PRC 37 SMI)

02:17

7.71km

220m

Hiking

Hard hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required. The starting point of the route is right next to a parking lot.

Last updated: August 13, 2024

Tips

Includes a segment that may be dangerous

A part of this route comprises technical, difficult, or hazardous terrain. Specialist equipment and prior experience may be required.

After 3.88 km for 4 m

Waypoints

Start point

Parking

Get Directions

2.77 km

Grota Tunnel

Highlight • Structure

The special kick of the tour is the crossing of the tunnel, which is 72 m long but only approx. 150 cm high. If you stand in front of the tunnel entrance, you can see the other end of the straight tunnels and on bright sunny days it appears as if you could do without a flashlight. In the middle of the tunnel hardly any daylight comes in and even the flashlight is absorbed by the black rock. For taller people, like me, the head was directed more towards the ground instead of looking at the bright glow from the tunnel exit. The special thing about the tunnel is that it transfers you from the cow pastures with stone wall hedges and few trees over a relatively short distance into a gorge with a lush rainforest, where a visitor is surprised by a world of tree ferns, just like one down under in New Zealand has seen in pictures.

Translated by Google •

Tip by

3.12 km

Historic Water Pipeline Trail

Highlight • Trail

A lot of water was needed for the alcohol factory, so a water pipe was built here in the valley. This is well over 100 years old

Translated by Google •

Tip by

3.68 km

Window of Hell Waterfall

Highlight • Waterfall

Very nice and exciting hike. The path leads through several tunnels but you can also walk around. Crouching is announced at 1.5m height of the tunnel, flashlight highly recommended. 2 of them about 50m long. Great waterfall "hell window" at the end and aqueducts.

Translated by Google •

Tip by

7.71 km

End point

Parking

Way Types & Surfaces

Way Types

3.21 km

2.74 km

1.13 km

521 m

< 100 m

Surfaces

4.33 km

1.20 km

1.07 km

512 m

414 m

142 m

< 100 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (410 m)

Lowest point (230 m)

Weather

Today

Saturday 18 July

22°C

19°C

-- %

Additional weather tips

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Comments

June 28, 2023,Tunnel – Janela do Inferno Runde von Remédios

Shortly before/after the waterfall, the path is hardly/not at all passable due to a landslide.

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October 5, 2025,Janelo do Inferno - PRC37 SMI

Actually the tour is only about 7.8 km long but the GPS was a bit crazy and we walked 1-2 areas twice

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June 12, 2025,Janela do Inferno

First day on Sao Miguel. It turns out that there are places with identical names on the island. So we initially drove to the wrong starting point, about 40 minutes away. We also stumbled upon the description in the Rother guide and therefore didn't take the right turn at the beginning of the tour. However, we were able to find …

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October 24, 2024,Von Remédios zum Janela do Inferno 👹🔥🪟 🇵🇹

It took a few years longer than planned - a whole 10 - to go on holiday here, but now I'm on São Miguel in the Azores and today I did my first little round trip, which I found absolutely sensational. It started in Remédios. First on a small asphalt road out of the town and then very quickly on …

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June 20, 2022,Janela do Inferno

Beautiful hike along 100 year old water pipes to the natural spring "Janela do Inferno". The hiking trail is well signposted, parking is free and after every bend in the route you will find a new, breathtaking piece of nature. This little hike is a must on any trip to San Miguel.

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November 19, 2024,Durch Tunnel zum Janela do Inferno

This is the PRC 37 SMI hiking trail, a really great circuit. A lamp makes the tunnels easier, but without it the ghost train feeling is stronger. 👻

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August 5, 2023,Wanderung - auf zum Höllenfenster

Super great circular hike. On hot, sunny days you can experience for yourself how to get from dusty paths into a naturally air-conditioned world. In the crater it is shady, cool, pleasantly humid and the aqueducts are impressive. First the path leads through a tunnel, then over rocks and roots past wild ginger through the aqueducts - later, over it. …

Showing Translation

June 19, 2026,Rota da Água - Janela do Inferno (PRC37SMI) ⛲️

Hello. In the long tunnel, the GPS signal was lost, so Komoot sent me somewhere we haven't been. But who doesn't know this 😉? The next day, back to Germany 🇩🇪🤩

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Janela do Inferno — circular route on the Island of São Miguel (PRC 37 SMI)

Grota Tunnel

Historic Water Pipeline Trail

Window of Hell Waterfall

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