Boca do Inferno (Hell’s Mouth) Rock Arch – Ribeira Beach 🏖️, Cascais loop from Cascais

Hiking trails & Routes

Portugal

Lisbon

Cascais e Estoril e Estoril e Estoril

Boca do Inferno (Hell’s Mouth) Rock Arch – Ribeira Beach 🏖️, Cascais loop from Cascais

Moderate

4.6

(61)

796

hikers

Boca do Inferno (Hell’s Mouth) Rock Arch – Ribeira Beach 🏖️, Cascais loop from Cascais

02:13

8.40km

80m

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: August 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

1.30 km

Boca do Inferno (Hell’s Mouth) Rock Arch

Highlight • Natural Monument

The Boca do Inferno (hell's mouth) is a submerged by the sea steep coast on the Atlantic Ocean. It is located about two kilometers west of Cascais and can be reached on foot or by city bus.

Translated by Google •

Tip by

1.85 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.

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2.25 km

Condes de Castro Guimarães Museum

Highlight • Castle

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

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2.96 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 …

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3.25 km

Ribeira Beach 🏖️, Cascais

Highlight • Beach

Nice little beach right in town

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3.65 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. …

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4.37 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

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8.40 km

End point

Bus stop

Way Types & Surfaces

Way Types

3.22 km

3.03 km

1.90 km

152 m

102 m

Surfaces

3.98 km

3.34 km

893 m

152 m

< 100 m

Elevation

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

Weather

Monday 12 October

21°C

15°C

0 %

Additional weather tips

Max wind speed: 25.0 km/h

to get more detailed weather forecasts along your route

Comments

May 17, 2025,🇵🇹 Cascais und die Kletter Felsen🧗 von Guia😲👍😍

...today we're taking the train 🚅 from Cais do Sodre... the main transport hub in Lisbon... to Cascais...
Cascais is a pretty town about 30 km west of Lisbon on the Atlantic... especially popular with locals in the summer ☀️ because of the beaches 🏖️...

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October 13, 2021,PT, Cascais, Parque Marechal Carmona, Boca do Inferno, Beach, Loop

Sideseeing Trip through the beach resort Cascais including the following highlights:
Cascais City Council
Marshal Carmona Park
mouth of hell
Fort of Santa Marta
Condes de Castro Guimarães Museum
Santa Marta Beach
Queen's Beach

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May 4, 2022,Cascais - Stadt und Marina

The location of the city is fantastic, but the narrow streets suffocate in tourism

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April 21, 2024,🇵🇹 Cascais - erster Rundgang 🚶🏼‍♀️🚶🏼‍♂️

We arrived at our hotel in Cascais this morning at 9:30 a.m. local time. After breakfast we set off on a little exploration tour. It's warmer here than we expected. The sun is shining and the beaches are bustling with people.
The nearby park also looks very beautiful, but was very crowded today.
We'll go there again when it's a …

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April 28, 2022,Lissabon: Cascais und das Maul der Hölle

Cascais is the starting point for the path along the dark cliffs of the coast: a pretty, wealthy, tourist town on the Atlantic; close enough to Lisbon to be reached by the suburban trains.
Dark, sharp karstic rock over a blue, foaming sea, red sand between the rocks, the surf gurgles in the crevices below us: these are the ingredients …

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March 19, 2023,Wanderung durch cascais 😀🍀

That was super nice today..can't be compared to lisbon..we really liked that we had to do another shopping tour here on Tuesday..soo calm..that's just awesome..🌞👍😀🌴🍸

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