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

hikers

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

01:57

7.52km

50m

Hiking

Easy hike. Easily walkable paths. 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

Start point

Bus stop

Get Directions

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

163 m

Boca do Inferno (Hell's Mouth)

Highlight • Gorge

Beautiful coast with great cliffs. Good bike path.

Translated by Google •

Tip by

1.14 km

Casa da Guia Cycle Path

Highlight • Cycleway

Bike path with new lights, enjoy! 🤙🏾

Translated by Google •

Tip by

3.83 km

Fort of São Jorge de Oitavos

Highlight • Historical Site

17th century fortress perched on the coast c

Tip by

6.33 km

Drinking Water Fountain at Casa da Guia

Highlight • Rest Area

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

6.62 km

Cascais Coast

Highlight • Natural

6.81 km

Guia Lighthouse

Highlight • Monument

6.91 km

View of the Santa Marta Lighthouse and the Cascais coast

Highlight • Viewpoint

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

Translated by Google •

Tip by

7.52 km

End point

Bus stop

Way Types & Surfaces

Way Types

5.53 km

1.73 km

164 m

< 100 m

Surfaces

4.83 km

1.68 km

1.01 km

< 100 m

Elevation

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

Weather

Today

Friday 30 October

25°C

15°C

0 %

Additional weather tips

Expect light wind and shifting conditions.

to get more detailed weather forecasts along your route

Comments

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

View of Boca do Inferno

Boca do Inferno (Hell's Mouth)

Casa da Guia Cycle Path

Fort of São Jorge de Oitavos

Drinking Water Fountain at Casa da Guia

Cascais Coast

Guia Lighthouse

View of the Santa Marta Lighthouse and the Cascais coast

Nearby routes

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