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Trip Planner:   Europe  /  Portugal  /  Central Portugal  /  Lisbon District  /  Cascais  /  Boca do Inferno

Boca do Inferno, Cascais

4.2
#1 of 12 in Nature in Lisbon District
Must see · Geologic Formation · Nature / Park
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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.
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Boca do Inferno reviews

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TripAdvisor traveler rating
TripAdvisor traveler rating 4.0
4,138 reviews
Google
4.6
TripAdvisor
  • Must see. The views transcend the beauty of your life and mind. This is why you are visiting here and what its all about in Cascais. 
    Must see. The views transcend the beauty of your life and mind. This is why you are visiting here and what its all about in Cascais.  more »
  • Areived rhere accidentally during sunset. Relaxing and beautiful experience even in november, just to sit and watch the sunset 
    Areived rhere accidentally during sunset. Relaxing and beautiful experience even in november, just to sit and watch the sunset  more »
Google
  • Beautiful place to visit. Nature was very generous to build something like this. It's easy to access the rocks, has stairs to help the walk to where you can take some good pictures and sit to enjoy the sunset. And you can walk just a couple of minutes and find interesting restaurants. The parking is public in the street, it's paid but very accessible.
  • The Inferno's Mouth is well dubbed. Around sunset, what looks like a few jagged rocks with mild waves, starts swelling and rising and crashing, pushing into the tunnel that has been created after thousands of years of erosion. The energy that the ocean has is palpable and minute by minute it gets more and more aggressive. It is awesome, in the purest form of the words definition. There are plenty of safe places for people to stand to watch this incredible performance. A distance away there is a peninsula with a pier that starts signaling its light -- posing some incredible scenes for picture-taking. Although it was the end of June, the place was not packed and it was easy to walk around to find scenic photogenic angles. There is no cost associated with attending this fine show and plenty of places to park. It is also surrounded by multiple restaurants and is a skip and a hop to Cascais. Beware of those selling souvenirs - they are bad quality and four times more expansive than in other places. If you're in the area, I definitely encourage you to visit Lucifer's jagged mouth. Also, if you look closely at my pictures, you will see a dragon (or is it just me) herding the waves into the mouth!

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