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Boca do Inferno
Holiday Travel Guide

Boca do Inferno which includes rugged coastline and general coastal views

Follow rugged coastal paths, enjoy sweeping ocean vistas and marvel at the power of nature at this stunning natural attraction with an ominous name.

Translated as “Hell’s Mouth,” Boca do Inferno is a coastal rock formation just a short walk or bike ride west of the seaside resort of Cascais. See the rock arch and cove formed after the collapse of a coastal cave, the result of endless pounding of powerful ocean waves.

Take a walk along the 1-mile (1.5-kilometer) path that leads from the center of Cascais to Boca do Inferno. The picturesque walk takes you past the scenic Cascais Marina and the iconic Santa Marta Lighthouse. Take your time on your way to chat with the local fishermen who cast their lines from the rocky shores leading up to Boca do Inferno. A cycle path also follows this route and there is an access road for vehicles, if you want to opt for a quicker alternative to walking.

Tread carefully when you arrive at the arch because the path continues on down the cliff face. Enjoy the impressive close-up views of the clear blue water that washes in from the ocean. Notice how over millennia the softer rock was eroded by the waves to form a cave, which then partially collapsed in on itself to form the perfect arch and natural pool you see today.

Head to the lookout point for the best views of Boca do Inferno and the Atlantic Ocean and watch in awe as the waves crash against the rocks at the bottom, creating a foaming mass of white water. This powerful flushing motion inspired the name of Hell’s Mouth.

The spectacle is especially impressive to watch during rougher weather if you are willing to brave getting wet and windswept. Milder conditions in the summer still provide very enjoyable views.

Return to Boca do Inferno in the late afternoon for a chance to catch a beautiful sunset over the rocky coastline and ocean. Bring a picnic and a bottle of local wine and find your own private spot along the coast to be one with nature.

Boca do Inferno is on public land and is accessible at all times, free of charge. It is easy to reach on foot or by bike, but if you decide to come by car, there is a car park next to the on-site restaurant.

Top things to do in Boca do Inferno

Top Trending Hotels Near Boca do Inferno

Hotel Baia
Hotel Baia
3 out of 5
Passeio D. Luís I, Cascais
Free cancellation
The price is €84 per night from 18 Apr to 19 Apr

Located in the heart of Cascais, this beach hotel is within 1 mile (2 km) of Church of the Assumption (Igreja da Assuncao), Cascais Beach and Boca do Inferno. ...

4.1/5Very Good! (575 reviews)

"The best thing about the hotel is prime position. It was very clean good food. Bed not comfortable and the service was very slow"…"

Reviewed on 10 Sep 2020

Hotel Baia
Cascais Guias Gorgeous & Spacious
Cascais Guias Gorgeous & Spacious
3 out of 5
Rua do Farol 378, 1º Esq, Cascais, Portugal
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Situated near the beach, this apartment building is within 1 mi (2 km) of Manuel Possolo Hippodrome and Boca do Inferno. Cascais Beach and Guincho Beach are ...

Cascais Guias Gorgeous & Spacious
Grande Real Villa Italia
Grande Real Villa Italia
5 out of 5
Rua Frei Nicolau de Oliveira, 100, Cascais
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Situated near the boardwalk, this luxury hotel is within a 15-minute walk of Boca do Inferno and Cascais Beach. Tamariz Beach and Guincho Beach are also within ...

4.8/5Exceptional! (988 reviews)

"I liked the overall cleanliness of the Hotel and the staff were attentive. What I did not like was to find some insects in my bed in the middle of the night. I had to move rooms in the early hours of the morning. I have never experienced this in all the time I’ve stayed in Hotels. I was hoping that ..."…"

Reviewed on 14 Sep 2020

Grande Real Villa Italia
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

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Top Hotel Deals

Hotel Baia
Hotel Baia
3 out of 5
Passeio D. Luís I, Cascais
The price is €84 per night from 18 Apr to 19 Apr
Hotel Baia
Cascais Guias Gorgeous & Spacious
Cascais Guias Gorgeous & Spacious
3 out of 5
Rua do Farol 378, 1º Esq, Cascais, Portugal
Cascais Guias Gorgeous & Spacious
Grande Real Villa Italia
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5 out of 5
Rua Frei Nicolau de Oliveira, 100, Cascais
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Casa Vela Guest House
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4 out of 5
Rua Dos Bem Lembrados 17, Cascais
Casa Vela Guest House
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.