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!

(Translated by Google) The fascinating Boca do Inferno is a unique formation in the rocks by the ocean and is one of the most famous visit points in Cascais. It is believed that in the past this place would have been a cave, whose exuberance results from the union between its natural beauty and the rough sea. Currently, Boca do Inferno is an open pit, with a kind of arch through which sea water enters. The name given to this place is due to the morphological analogy and the frightening and tremendous impact of the waves that are felt there, even rising in a white foam with tens of meters. (Original) A fascinante Boca do Inferno é uma formação única nas rochas à beira do oceano e é um dos pontos de visita mais famosos de Cascais. Acredita-se que antigamente este local terá sido uma gruta, cuja exuberância resulta da união entre a sua beleza natural e o mar revolto. Atualmente, a Boca do Inferno é uma cavidade a céu aberto, com uma espécie de arco por onde entra a água do mar. O nome atribuído a este local deve-se à analogia morfológica e ao assustador e tremendo impacto das ondas que aí se fazem sentir, chegando a elevar-se numa espuma branca com dezenas de metros.

Guarded by countless laughing seagulls, the „Mouth Of Hell“ is one of the most beautiful landmarks near Lisbon. Completely designed by nature with its infallible hand, the area is presenting itself with a rough charm which is created when the sea and the wind as bride and groom come together to meet their best man, the rocks of a coast line. Over millions of years the natural forces created the shapes one can see today. The waves keeping on coming restless and powerful, pressing through the mouth into the basin you’re looking into when standing on the edge of the cliff. When you get lucky, the weather will be just fine. With a deeply blue sky of a color you will find nowhere else around the world. And bright sunshine, which lets the foaming water look like dusted with countless little gems. Look and take in this endlessness of the ocean. Breathe deeply and get a sense of what it is like to inhale the sunlight. Then close your eyes. And just listen: what the flooding and ebbing waves got to tell you. Whatever it may be, the seagulls will keep on laughing. At all of it.

If you are in the area, it is worth a visit but I found the walk from the Citadel to this spot more interesting. Make sure to visit the Casa de Santa Maria and the lighthouse. The river/see along the way is also stunning.

Stunning and very picturesque. Beautiful view and cave formation. The small town is also very nice with other things to see there. We use bolt from lisbon and back, which was affordable and saved time. A must-see if you are planning to to visit lisbon.

(Translated by Google) Very good place to visit at this time of pandemic. Outdoors and with a brutal view. (Original) Local muito bom para visitar nesta altura de pandemia. Ao ar livre e com uma vista brutal.

Wow what a breath taking view. This place is like heaven on earth. It's so beautiful and if u ever in Cascais please do visit as it's not too far from Cascais station.

Wonderful natural landscape! Magnificent wild beauty! It is worth visiting and admiring the wonder of nature. Very expensive area with a few shops nearby. It had toilets near the road but you paid.

Stopped enroute to Cascais Town. Brilliant place to stop and view coastal erosion. Steps going down quite steep and slippy so be mindful. Good views out to sea 🌊

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.

What an amazing place! Wow! One of the best experiences you will get in Cascais. The magnificence of nature, the power of existence, pure fearful feeling. It's you, and mother nature there to remind you how strong she is. The best sunset experience you will get. It's beautiful and scary at the same time. There was one guy playing saxophone, so it was even more touching. The moth of the Hell. It can be slippery on the rocks, so watch your steps. I recommend this beauty to all who want to se something extraordinary.

Great place to see Cascais waterfront view. If you managed to visit during high tides or rough sea, then views will be more beautiful. Very easy walk, weekdays are best. Not too far from Lisbon, take train from there, then a small walk from town, we really enjoyed our walk around Cascais city. It’s a good place for taking photos, try to come early to skip the crowd

Really cool spot to watch the waves. If you’re visiting you gotta spend an hour here for sure. There’s bathrooms and little spots to shop around close by. Parking is pretty accesible along the main road as well.

Very cool place, we came back here a couple of years ago, and I also came here when I was about 1 or 2 years old. You can get very close to the water (be cautious) and see the waves hit the rocks. In the wintertime, it's even more crazier, I even think they close it off due to how dangerous it can be. None of the less area is cool and nice to visit.

Within walking distance from Cascai. You can also take a bus there. We walked both ways. The sound of the crashing waves is interesting to hear and watch.

A good spot to take pictures of the sea and the rocks. It's a 15-minute walk from the city center. Since it's well located, people tend to rent bikes, take the bus,Buscas for example, and walk to get there. There are a couple of restaurants, a café and an ice cream place right next to it.

If you are in Cascais, you should visit Boca do Inferno. Beautiful place, and amazing sunset!

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!

Beautiful natural site on the coast in Cascais, a short walk from the train station. The waves come rolling in from the Atlantic unabated and are funneled into this natural open-air grotto, which creates quite the kinetic and frothy scene as the waves hit the rocks. There are a few amenities (snack bars, restaurants, and gelato) on site if you want to stay a while and watch.

People flock here for sunset which is fine but you can't really get down low as its too dangerous. You are really better off going a mile or two further west and watching the waves smash against the rocks which is far more exhilarating. Im probably too old - judging by the youngsters we saw it's probably a good place to snog your girl/boys face off.

Rocks and ocean make a great impression. You feel freedom and love there. As for me one of the best places to visit if you are in Portugal.

What a place to watch the sunset. Amazing ?There is a little shop there and a bar and restaurant but lots of people take a bottle and air and watch the view. Can get a little crowded so if you just want to see the sun, head down the road a bit where there are less people.

Very beautiful! Hadn't gone there in years, was really please of how well preserved it is!

One of the very best natural scene Portugal offers to the World. A must visit.

Nice place for a day out with family and kids.

(Translated by Google) Natural beauty !! (Original) Beleza natural!!

Único, merece mucho la pena

Lugar que deve ser visitado e se possível no horário do por do sol. Muito belo

Drove all the way out here to find that this attraction is only worth it if the right tide and wind is in place. We came here when we could and it was low tide with basically no waves. Not worth it.

Bom para apreciaro mar.

(Translated by Google) Beautiful sunset (Original) Bellísima puesta de sol

Nagyon szép hely jó volt a különleges sziklákon ücsörögni és bámulni az óceánt

(Translated by Google) Nothing special (Original) Rien de spécial

(Translated by Google) A hell (Original) Un inferno

C t magnifique très beau paysage

(Translated by Google) Beautiful (Original) Lindo

The scenery is very good, but the sanitation is very poor, there are two people fishing on the reef, the surrounding is a bit dirty, souvenirs are recommended, good quality and cheap

(Translated by Google) Spectacular! (Original) Espectacular!

(Translated by Google) beautiful sea (Original) 綺麗な海

Really cool spot to visit. Due to covid19, there is a maximum amount of people allowed on a platform to see the entrance of the water through the rocks, but I think that it could be better seen from points close to the road, instead of close to the ocean.

Lieu exceptionnel lors des grandes marées mais mal entretenu, sale, mégot de cigarette partout... ☹

Un paseo matavilloso desde Estoril cerquita del mar.

Schön anzusehen und mit dem Fahrrad schnell erreichbar. Ein günstiger Fahrradverleih befindet sich im Yachthafen.

Vistas espectaculares, no cabe otra palabra

(Translated by Google) Beautiful place to walk (Original) Lindo local para passear

Spoko klify ale trochę bardziej na północ są lepsze ?

Un acantilado pequeño. Te entretienes 15 minutos

Lugar turístico muito incrível, quem passa a Cascais deve ir!

(Translated by Google) A wonderful experience (Original) Una experiencia maravillosa

(Translated by Google) A lovely place to visit. Wonder for the senses. What is really sad is humanity, throwing cigarette butts and garbage, which was visible among the rocks. (Original) Un lugar precioso para visitar. Maravilla para los sentidos. Lo que da realmente pena es la humanidad, tirando colillas y basura, que se dejaba ver entre las rocas.

(Translated by Google) Quiet and very beautiful place. (Original) Lugar calmo e muito lindo.

Local magnífico. Luz resplandecente. Tempo maravilhoso. Paisagem deslumbrante.

Obligatorio pasar por allí

Envolvente, Romântico e fresco..

Schöner Ort, aber sehr touristisch und wenige Möglichkeiten was zu unternehmen. Es gibt nur einen kurzen Weg zum Aussichtspunkt.

(Translated by Google) Very beautiful. Don't forget to go there (Original) Muito lindo. Não deixem de ir lá

(Translated by Google) The truth is that it has its charm. (Original) La verdad es que tiene su encanto.

(Translated by Google) Nice ... too bad there were no waves (Original) Frumos...păcat că nu erau valuri

O'cess

(Translated by Google) Very beautiful, it can be seen in two minutes because it is at the foot of the road but it is worth it (Original) Muy bonito, se ve en dos minutos porque está a pie de carretera pero merece la pena

(Translated by Google) Very pleasant, natural environment. (Original) Muito agradável, ambiente natural.

(Translated by Google) Very good! I recommend (Original) Muito bom! Recomendo

(Translated by Google) I loved it (Original) Adorei

Lugar muito bonito. Estava tranquilo e vazio. Maré baixa.

(Translated by Google) Very pretty. (Original) Muy bonito.

Beautiful sight of nature! Worthy to stop by and visit. And their are restaurants and little cafes there too.

This place is beautiful in so many angles. Definitely worth a visit while going to Cascais. we rented a bike in the city in rode there. Only 5e for 2hrs.

It’s a nice spot if you are bored around Cascais. Do not expect something incredible there. Can be combined with a bike ride along the coast.

Nice view!! I would recommend it.

Fantastic pice of nature. Great place to get pictures. Also Cascais beaches is only 20 min walk. Mine favourit beach in Cascais i Praja do Rainha

A bit désappointant. It’s a rock arch, great maybe by sunset for Instagram pics, but very crowded an touristic area. The coastline offers so many nice point of views. I won’t say that this one is a must see.

Panoramic, jaw dropping little national hidden gem. Makes for the best afternoons in family or anyone who wants a little inner peace.

Amazing views and not far away for Cascais town centre. I would recommend going there for a sunset, as the place is overlooking the Atlantic Ocean.

Gorgeous rock formation. Highly recommend to come by on the way to Guincho beach. We rent a bike and ride there in summer and it was amazing. There is also a coffee shop near by.

Interesting place, not much to see but still beautiful. Drop by if you're nearby.

You can to be stolen there. Take care it.

Boca do Inferno and corona..

Fantastyczne miejsce godne polecenia turystom jak i romantykom, na randkę idealne😊😍

Fantastycznie uformowany klif, warto zatrzymać się na chwilę.

Pour lindeza ke a no mesmo lugar

Wonderful place to visit

(Translated by Google) Bonito is worth visiting (Original) Bonito vale a pena visitar

(Translated by Google) What a beautiful place! I recommend everyone to know this place. (Original) Que lugar lindo! Recomendo a todos conhecerem esse lugar.

(Translated by Google) Wonderful place, to visit in due course. (Original) Local maravilhoso, a visitar oportunamente.

Beautiful place. It worth the visit!

(Translated by Google) Interesting. (Original) Interessante.

(Translated by Google) Great place to catch a glimpse of the sunset (Original) Excelente local par vislumbrar o por do sol

(Translated by Google) Stunning and dangerous. (Original) Deslumbrante e perigoso.

(Translated by Google) Wonderful experience, do the walking tour ... (Original) Maravilhosa experiencia,fazer o passeio a pe...

(Translated by Google) Very topppp magical place (Original) Lugar mágico muito topppp

(Translated by Google) Fantastic place! (Original) Lugar fantástico!

Wonderful!!!

(Translated by Google) Beautiful natural landscape in Cascais. (Original) Bela paisagem natural em Cascais.

(Translated by Google) Ah this place! What a look! Both in winter and in summer. (Original) Ah este lugar! Que visual! Tanto no inverno, como no verão.

(Translated by Google) Beautiful.... (Original) Belo....

(Translated by Google) It's beautiful, a real postcard of cascais. (Original) É lindo, um verdadeiro cartão postal de cascais.

(Translated by Google) Beautiful cliffs. It's worth dropping by and listening to the ocean breathe. Access by bus, although as for the schedule, I have doubts whether it is used. We had a hard time finding a sleeping bag and missed some buses as a result. (Original) Piękne klify. Warto tu wpaść i posłuchać oddechu oceanu. Dojazd autobusem, chociaż co do rozkładu to mam wątpliwości czy jest używany. Śpiworek mieliśmy problem ze znalezieniem przystanku i przez to przegapiliśmy kilka autobusów.

Cute spot to appreciate the magic of the ocean.. rough, raw.. loved it. Some kind, knowledgable fisherman; easy parking

Beautiful piece of nature close to Cascais. Worth visiting. I didn't like that it's not accessible with baby stroller or wheelchair. There are plenty of stairs. I wish local authorities can upgrade the infrastructure for barrier-free.

A nice viewpoint. When we were there it was not so frightened as the name shows.

Breathtaking views! Nature played a lot to create such wonders! Sunset is the best time of the day to come here!

Baco do Inferno is easily to reach by foot from Cascais. It’s a nice walk and not that far. The place is a beautiful piece of nature where you can spend hours watching the wild water hitting the rocks. We visited this place in June 2021. Unfortunately the weather wasn’t that good to make some nice pics… .

Very nice place to see if you are nearby, don't miss it!

Free natural attraction about a 25 minute walk from the city center, which is picturesque all on its own. The formation is very cool, would have been even cooler if it was high tide. Plenty of beautiful pictures of the formation and sea to be taken, also some cafes to eat and drink at as well as shops to wander

It’s Portuguese name makes it a curiosity that cannot be avoided ‘The entrance to hell’ - in reality it really does play up to its name when the ocean is angry and the tide is high. It’s at this point that you see it come to life. Definitely a place worth visiting in the Cascais area. Plenty parking and food and drinks available too.

A spectacular beauty spot, on the coastal rocks just outside the center of Cascais, past the fort and Marina. When the sea is a little rough the waves crash up inside the natural cove and provide a wonderful flume and spray display. Well worth a nice walkup the coastal road.

It’s definitely one of my favourite places in Grande Lisboa area - one of 100 beautiful places in Portugal! You can stay here for hours, watching the ocean and waves fighting with rocks and creating beautiful patterns on them. The nature is absolutely stunning here - you can spot some cute birds and plants as well Sometimes you have a lot of people here, but you can always walk along the edge to find yourself a place of peace and quiet It’s possible that the site was an ancient cave With all of its unique characteristics, Boca do Inferno is a place where you can enjoy a divine landscape and magnificent sunsets It’s interesting that even Portuguese wiki says that it’s a magnificent place that can be “overshadowed by not rare suicides committed on its dangerous and unprotected cliff”. It sounds not very romantic, but it’s true Anyways, the site is absolutely beautiful here and I love this place

Okay view of cliffs near the coastline. There are also some shops and bars near for shopping and relaxing. For people looking for an adventure, you can swim to some great spots. Ofcourse, this is on your on risk... While the location is fine, due to the close proximity of Cascais, it's might be worthwhile to drop by.

Boca do inferno is a must-see in Cascais. It is easily reached on foot (about a 25-minute walk from the train station) along the coast, so it is absolutely pleasant. The best time to go there is from January to April, when it is not too crowded and you can enjoy the beauty of the place. There are bars and restaurants around there at moderate prices. Even if you are afraid of heights, don't worry, the place is very safe. Absolutely recommended is the sunset. Use suitable shoes, especially if you choose to go all the way down, the rocks are always wet and therefore slippery. Enjoy!

Mostly a well organized little sea side resort with amazing views of the North Atlantic. Weather was amazing and quite a good variety of places to eat and drink. Small down point though was lack of cash machines in proximity- not all the vendors took card payments.

A must see, take a bike or scooter and enjoy the coast, make sure to stop at the viewing point to see the arch. Best enjoyed at sunset

Great place for a walk and to watch the magnificent water shooting up, sometimes 30 feet in the air. It’s truly a beautiful place, city and with great restaurants near by.

Beautiful place to visit if you are naturistic and love to watch the ocean waves. You can take a train fron Lisbon to Cascias, from there you can either take a bus or walk for 20 minutes. I recommend walking, the streets are super nice and peaceful. The only downside is it can get crowded.

If you are a walker… then its the place for you from the old town to the beaches the most beautiful atmosphere.. try to go in a cloudy day or it will be difficult 😞

Really cool natural sea inlet. You can walk around this and have great photos.

Scenic cliffs just off the main road. Wasn't crowded when we went on a Thursday around midday. After visiting, I recommend you continue west to see more beautiful beaches and coastline.

Great little site, easy access, beautiful view, not much after that, you have to travel back down to the main strip.

Crowded place. No shadows to hide from the Sun. Bars are expensive and parking is difficult. That said... The view is amazing.

We stopped here on a bus tour to see these Beautiful rock formations. It was a beautiful day and it made for some captivating photos. I wish I could have spent a little more time but that is the way it goes when you do the bus tours.

It's a stunning natural place, they call also the "Mouth of Hell." It is a rugged coastal formation consisting of cliffs and a narrow chasm where the Atlantic Ocean crashes with dramatic force. Visitors can enjoy breathtaking views of the turbulent sea and take in the natural beauty of this awe-inspiring location. Boca do Inferno is a popular spot for tourists and photographers, offering a unique and picturesque experience along the Portuguese coastline.

Nice place to relax and take in the scenery, watching the local fisherman enjoying the day fishing. Nice place to take in a few pictures, enjoy locals (expats) showing their art and jewelry display. There is a small restaurant and also a small shop for drinks or ice cream and other trinkets. Be careful with the cliffs of you have little ones or unstable adults.

About 30 minutes walk from the centre of Cascais. Head towards the Citadel and then follow the coast road. Interesting natural wonder... Good spot for photos. Coastal views. Tourist cafes if you need refreshments. If you plan to visit the Michelin star restaurant nearby then you will need to book ahead.

Love this historical place just outside Cascais town centre. Beautiful walk/bike ride there and back and the scenery is amazing. Free to visit but do be careful in adverse weather as the rocks/steps can get slippery.

Bucket list item. This place is amazing, the sound of the crashing waves against the rock, is amazing, hypnotizing. Nature's strength at its best. Is little far from town but worth the walk.