Hell's Mouth

Hell's Mouth: Top Tours & Activities

Top Attractions in Lisbon District

About Hell's Mouth

The Boca do Inferno is an interesting cliff formation close to Cascais, which has been given an overly dramatic name of Hell's Mouth. The ceaseless pounding of the Atlantic Ocean on the cliffs chiselled out a small cave, which subsequently collapsed forming a small bay and natural arch.

What People Are Saying

★★★★★
"Fernando was awesome! Funny, friendly, knowledgeable and the tour is very well organized. "
★★★★★
"From a timely pickup at our hotel front door and until drop off, it was a magnificent day with our guide Feliciano. He made this a safe, fun and very interesting experience. We had flexibility in planning our day and enjoyed the entire time. The no rushing and yet we saw so much in one full day. The tone and pace made it apparent that this was not a routine nor ritual for our guide. Feliciano was enjoying himself so much that it made it great for us !!! Thanks again. "
★★★★★
"The tour was exactly as advertised. We had an excellent day and we were very impressed with Feleciano’s knowledge of the area. He catered to our style (good views, insight, crowd avoidance, unique experiences) and delivered an completely enjoyable day. "
★★★★★
"Our tour guide was very informative and very flexible. We were able to see lots of historically significant landmarks in Sintra while also being able to enjoy the beautiful natural scenery. Our guide was flexible and gave us several choices as to what we wanted to see and when. I would definitely recommend this tour!"
★★★★★
"Excellent in every respect. We were asked our preferences and Feliciano took our responses and the weather into consideration. The best part was the off-road component as we drove through low wispy clouds in the forest. We loved the personal approach, and it’s our favourite aspect of a four week holiday. "

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