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
4,125 reviews
Google
4.6
TripAdvisor
  • It really is spectacular well worth visiting. I’ve been to Cascais many times and this was our first time visiting this will definitely go again next time we’re there. 
    It really is spectacular well worth visiting. I’ve been to Cascais many times and this was our first time visiting this will definitely go again next time we’re there.  more »
  • It is great to visit anytime, but if you manage to visit it at high tide and shaken waters, best. It is usual in winter. But even in summer may be impressive. The noise of the waves inside of the... 
    It is great to visit anytime, but if you manage to visit it at high tide and shaken waters, best. It is usual in winter. But even in summer may be impressive. The noise of the waves inside of the...  more »
Google
  • The mouth of hell!! The geology of this site is quite fascinating. You really get a sense of how the place acquired its name. The sea was very calm on the day of my visit but I can imagine that when the tides are angry, this place comes alive!! A few little cafes and ice cream places nearby and lots of parking if you fancy the pleasant 15 minute walk down to Cascais.
  • Through me is the way to the city of woe. Through me is the way to sorrow eternal. Through me is the way to the lost below. Justice moved my architect supernal. I was constructed by divine power, supreme wisdom, and love primordial. Before me no created things were. Save those eternal, and eternal I abide. Abandon all hope, you who enter. "Dante's Inferno, the divine comedy"

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