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Portugal
Lisbon
Cascais e Estoril e Estoril e Estoril

Boca do Inferno (Hell's Mouth) – Fort of São Jorge de Oitavos loop from Cascais

Routes
Hiking trails & Routes
Portugal
Lisbon
Cascais e Estoril e Estoril e Estoril

Boca do Inferno (Hell's Mouth) – Fort of São Jorge de Oitavos loop from Cascais

Easy

80

hikers

Boca do Inferno (Hell's Mouth) – Fort of São Jorge de Oitavos loop from Cascais

01:57

7.52km

50m

Hiking

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: September 10, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parque Natural de Sintra-Cascais

Waypoints

A

Start point

Bus stop

Get Directions
1

61 m

View of Boca do Inferno

Highlight • Natural Monument

From this point you have a very good view and you can see that it is actually a hole.

Translated by Google •

Tip by

2

163 m

Beautiful coast with great cliffs. Good bike path.

Translated by Google •

Tip by

3

1.14 km

Casa da Guia Cycle Path

Highlight • Cycleway

Bike path with new lights, enjoy! 🤙🏾

Translated by Google •

Tip by

4

3.83 km

Fort of São Jorge de Oitavos

Highlight • Historical Site

17th century fortress perched on the coast c

Tip by

5

6.33 km

It's located right next to the bike rental booth, at the foot of Casa de Guia. The water is drinkable.

Translated by Google •

Tip by

6

6.62 km

Cascais Coast

Highlight • Natural

7

6.81 km

Guia Lighthouse

Highlight • Monument

8

6.91 km

There's a small snack stand and a few benches overlooking the bay. Perfect for a break.

Translated by Google •

Tip by

B

7.52 km

End point

Bus stop

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Way Types & Surfaces

Way Types

5.31 km

1.73 km

226 m

148 m

< 100 m

Surfaces

4.61 km

1.68 km

1.04 km

148 m

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Elevation

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

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Weather

Powered by Foreca

Sunday 11 October

20°C

14°C

0 %

Additional weather tips

Max wind speed: 17.0 km/h

to get more detailed weather forecasts along your route

Comments

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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