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Portugal

Lisbon

Cascais e Estoril e Estoril e Estoril

Cascais Citadel – Boca do Inferno (Hell's Mouth) loop from Cascais e Estoril

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Hiking trails & Routes

Portugal

Lisbon

Cascais e Estoril e Estoril e Estoril

Cascais Citadel – Boca do Inferno (Hell's Mouth) loop from Cascais e Estoril

Moderate

4.1

(10)

163

hikers

Cascais Citadel – Boca do Inferno (Hell's Mouth) loop from Cascais e Estoril

02:44

10.3km

100m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: April 24, 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

3.56 km

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

3.61 km

Rocky coastline east of Boca do Inferno

Highlight (Segment) • Natural

East of the Mouth of Hell (Boca do Inferno), a bizarre, rugged rocky landscape stretches along the banks of the Tejo.

Translated by Google •

Tip by

4.51 km

Condes de Castro Guimarães Museum

Highlight • Castle

Romantic style palace from 1900 with paintings, antique artefacts and old library.

Translated by Google •

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5.07 km

Cascais Citadel

Highlight • Castle

The Cidadela de Cascais (Cascais Citadel) is a fascinating fortress complex that guards the marina and the bay. It is a unique mix of military history and modern art.
Here …

Tip by

5.34 km

5th of October Square, Cascais Town Hall and Statue of Dom Pedro I

Highlight • Monument

Cascais City Hall (Câmara Municipal de Cascais) is located in the city center, on Praça 5 de Outubro, an emblematic square that also houses the statue of King Pedro I. …

Translated by Google •

Tip by

5.35 km

Cascais Town Museum (Museu da Vila)

Highlight • Historical Site

The city museum is located directly opposite the port of Cascais and has a great exterior facade

Translated by Google •

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6.53 km

View of the rocky coast near Boca do Inferno

Highlight • Viewpoint

A bit away from the Boca do Inferno is this beautiful stretch of coastline. Who likes it nice and quiet should take a little break.

Translated by Google •

Tip by

7.02 km

Boca do Inferno (Hell's Mouth)

Highlight • Gorge

Beautiful coast with great cliffs. Good bike path.

Translated by Google •

Tip by

10.3 km

End point

Bus stop

Way Types & Surfaces

Way Types

6.12 km

2.79 km

968 m

402 m

< 100 m

Surfaces

4.60 km

3.62 km

1.68 km

363 m

< 100 m

Elevation

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

Highest point (50 m)

Lowest point (0 m)

Weather

Tuesday 26 May

28°C

19°C

0 %

Additional weather tips

Max wind speed: 17.0 km/h

to get more detailed weather forecasts along your route

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

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Cascais Citadel – Boca do Inferno (Hell's Mouth) loop from Cascais e Estoril

View of Boca do Inferno

Rocky coastline east of Boca do Inferno

Condes de Castro Guimarães Museum

Cascais Citadel

5th of October Square, Cascais Town Hall and Statue of Dom Pedro I

Cascais Town Museum (Museu da Vila)

View of the rocky coast near Boca do Inferno

Boca do Inferno (Hell's Mouth)

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