Boca do Inferno, or "The Mouth of Hell," features a natural rock arch with a cave that is known for sucking in ocean waves and shooting water out the top. Nestled in a dramatic environment of eroded cliffs and enormous waves, the site is a well-known photography spot. You can easily reach it by foot, and then follow stairs and bridges around it to get a better view or climb down to the cave if the ocean is calm. Be aware, however, that locals advise against climbing due to the sharp rocks. To visit Boca do Inferno and get the most from your holiday in Cascais, create itinerary details personal to you using our Cascais itinerary planning website.
Tours To Boca do Inferno
Sintra, Cabo da Roca and Cascais private tour BOOK WITH VIATOR FROM $59
Duration: 4 hours
Small group tour through the romantic Sintra & amazing Cabo da Roca & Cascais BOOK WITH VIATOR FROM $57
Duration: 7 hours
Cascais and Sintra Private Jeep Tour BOOK WITH VIATOR FROM $101
Duration: 6 to 7 hours
Boca do Inferno Reviews
It’s a dramatic section o coastline. 🌊The panorama it’s dramatically but at the same time it’s fantastically. The cliffs are so beautiful because they plunge directly in the Ocean. From up top you... more »
This is a very interesting geological formation and well worth a visit. Parking is ample, and after a short walk you will be treated to raging wave action moving through a small channel into a large.... more »
Amazing rock formation at the sea. Take a walk along towards Cascais to explore even more. The nature is remarkable. And if you return take a bite and have a drink at the "Rocha do Inferno" at the entrance. It worth a visit regardless the weather. Actually, is the weather is stormy, it is much more dramatic.
Interesting place to see. You can really see the power of the ocean here. Unfortunately, as in such a place, there are usually a lot of people. In close proximity there are toilets and a few pubs - but no revelations. There is a bus stop nearby, and there are parking spaces for private cars. If you are close you should come and see!
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