Title: Boca do Inferno in Lisbon District | Expedia.co.uk

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# Boca do Inferno

![Boca do Inferno featuring general coastal views and rocky coastline](https://images.trvl-media.com/place/553248621532485458/3d68ee4b-7fe1-4d79-a5cd-70062388589c.jpg?impolicy=fcrop&w=1040&h=580&q=mediumHigh)

![Boca do Inferno featuring general coastal views and rocky coastline](https://images.trvl-media.com/place/553248621532485458/3d68ee4b-7fe1-4d79-a5cd-70062388589c.jpg?impolicy=fcrop&w=1040&h=580&q=mediumHigh)

![Boca do Inferno which includes general coastal views, rugged coastline and a sunset](https://images.trvl-media.com/place/553248621532485458/1ead09b1-59ba-4912-bd1b-a2d6f4312826.jpg?impolicy=fcrop&w=1040&h=580&q=mediumHigh)

![Boca do Inferno which includes rugged coastline and general coastal views](https://images.trvl-media.com/place/553248621532485458/221f48c9-f1d6-44db-8308-bfbbcb33dde4.jpg?impolicy=fcrop&w=1040&h=580&q=mediumHigh)

![Boca do Inferno featuring a sunset and general coastal views](https://images.trvl-media.com/place/553248621532485458/41377362-f9bd-49aa-8e2d-c3ed36c8eedf.jpg?impolicy=fcrop&w=1040&h=580&q=mediumHigh)

## Visit Boca do Inferno

Activities

[Lisbon District travel guide](https://expedia.co.uk/Lisbon-District.dx178278)

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#### Follow rugged coastal paths, enjoy sweeping ocean vistas and marvel at the power of nature at this stunning natural attraction with an ominous name.

Translated as “Hell’s Mouth,” Boca do Inferno is a coastal rock formation just a short walk or bike ride west of the seaside resort of Cascais. See the rock arch and cove formed after the collapse of a coastal cave, the result of endless pounding of powerful ocean waves.

Take a walk along the 1-mile (1.5-kilometre) path that leads from the centre of Cascais to Boca do Inferno. The picturesque walk takes you past the scenic Cascais Marina and the iconic Santa Marta Lighthouse. Take your time on your way to chat with the local fishermen who cast their lines from the rocky shores leading up to Boca do Inferno. A cycle path also follows this route and there is an access road for vehicles, if you want to opt for a quicker alternative to walking.

Tread carefully when you arrive at the arch because the path continues on down the cliff face. Enjoy the impressive close-up views of the clear blue water that washes in from the ocean. Notice how over millennia the softer rock was eroded by the waves to form a cave, which then partially collapsed in on itself to form the perfect arch and natural pool you see today.

Head to the lookout point for the best views of Boca do Inferno and the Atlantic Ocean and watch in awe as the waves crash against the rocks at the bottom, creating a foaming mass of white water. This powerful flushing motion inspired the name of Hell’s Mouth.

The spectacle is especially impressive to watch during rougher weather if you are willing to brave getting wet and windswept. Milder conditions in the summer still provide very enjoyable views.

Return to Boca do Inferno in the late afternoon for a chance to catch a beautiful sunset over the rocky coastline and ocean. Bring a picnic and a bottle of local wine and find your own private spot along the coast to be one with nature.

Boca do Inferno is on public land and is accessible at all times, free of charge. It is easy to reach on foot or by bike, but if you decide to come by car, there is a car park next to the on-site restaurant.

## Plan a trip to see Boca do Inferno

Price found within the past 48 hours. Click for updated prices.

![Dona Graca Lisbon Apartments](https://images.trvl-media.com/lodging/24000000/23670000/23665500/23665443/71949dc3_y.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)

### Dona Graca Lisbon Apartments

Lisbon City Center

Save 100% on your flight

£266

per person

22 Mar - 26 Mar

found 4 hours ago

Return flight included

Manchester (MAN) to Lisbon (LIS)

9.6/10 Exceptional! (162 reviews)

Our stay was fantastic. I would highly recommend Dona Graca. The staff was warm and inviting. The breakfast was delicious and the apartment style room was charming. We would love to visit again and stay at Dona Graca. We felt very at home and the customer service was top notch. Lisbon was a beautiful city to visit.

Reviewed on 3 Jan 2026

![Rossio Terrace](https://images.trvl-media.com/lodging/116000000/115550000/115545600/115545595/cacbb6ef_y.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)

### Rossio Terrace

Lisbon City Center

£331

per person

23 Mar - 27 Mar

found 4 hours ago

Return flight included

Manchester (MAN) to Lisbon (LIS)

No reviews

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includes taxes & fees

per adult

[](https://www.expedia.co.uk/things-to-do/e-bike-from-sintra-mountains-to-cascais-sea-with-pickup-in-lisbon.a45263271.activity-details?&rid=553248621532485458&location=Boca+do+Inferno&swp=off)

### Water activities

[See all 17 activities](https://expedia.co.uk/things-to-do/search?&rid=553248621532485458&location=Boca+do+Inferno&filter.categories=Wateractivities)

![Olhão: 4-Hour Ria Formosa Islands Tour](https://mediaim.expedia.com/localexpert/4538546/b9878814-6cbf-4b21-a2d6-abf3dc3f71df.jpg?impolicy=resizecrop&rw=500&rh=280)

### Olhão: 4-Hour Ria Formosa Islands Tour

4h

8/10

158 GetYourGuide reviews

Free cancellation available

£22

includes taxes & fees

per adult

[](https://www.expedia.co.uk/things-to-do/olhao-4-hour-ria-formosa-islands-tour.a4538546.activity-details?&rid=553248621532485458&location=Boca+do+Inferno&swp=off)

![Cascais: Half-Day Fishing Trip](https://mediaim.expedia.com/localexpert/4531606/056d896c-9810-4313-82ca-1a02bfdb30cc.jpg?impolicy=resizecrop&rw=500&rh=280)

### Cascais: Half-Day Fishing Trip

3h

8.6/10

17 GetYourGuide reviews

Free cancellation available

£69

includes taxes & fees

per adult

[](https://www.expedia.co.uk/things-to-do/half-day-fishing-trip.a4531606.activity-details?&rid=553248621532485458&location=Boca+do+Inferno&swp=off)

![Cascais The Bohemian Sailing Experience](https://mediaim.expedia.com/localexpert/50705317/7bb74838-e169-45ce-8d28-805b6420131e.jpg?impolicy=resizecrop&rw=500&rh=280)

### Cascais The Bohemian Sailing Experience

2h

Free cancellation available

£278

includes taxes & fees

per traveller\*

\*Get lower prices by selecting more than 2 adults

[](https://www.expedia.co.uk/things-to-do/cascais-the-bohemian-sailing-experience.a50705317.activity-details?&rid=553248621532485458&location=Boca+do+Inferno&swp=off)

![Ericeira: Surf coaching at the World Surfing Reserve](https://mediaim.expedia.com/localexpert/47896258/4bdb1d9e-7b15-4578-b959-afb61d058bc7.jpg?impolicy=resizecrop&rw=500&rh=280)

### Ericeira: Surf coaching at the World Surfing Reserve

3h

10/10

1 GetYourGuide review

Free cancellation available

£82

includes taxes & fees

per adult

[](https://www.expedia.co.uk/things-to-do/ericeira-surf-coaching-at-the-world-surfing-reserve.a47896258.activity-details?&rid=553248621532485458&location=Boca+do+Inferno&swp=off)

![Lisbon Surf Class](https://mediaim.expedia.com/localexpert/48080149/00dc7ad4-1254-4072-ab62-f02a36781278.jpg?impolicy=resizecrop&rw=500&rh=280)

### Lisbon Surf Class

2h

Free cancellation available

£37

includes taxes & fees

per adult

[](https://www.expedia.co.uk/things-to-do/surf-class.a48080149.activity-details?&rid=553248621532485458&location=Boca+do+Inferno&swp=off)

![Group Scenic Sea Kayaking Adventure in Cascais](https://mediaim.expedia.com/localexpert/50755504/6c1e9ee0-2675-4bb6-80cb-240edfb3f775.jpg?impolicy=resizecrop&rw=500&rh=280)

### Group Scenic Sea Kayaking Adventure in Cascais

1h 30m

Free cancellation available

£135

includes taxes & fees

per adult\*

\*Get lower prices by selecting more than 2 adults

[](https://www.expedia.co.uk/things-to-do/group-scenic-sea-kayaking-adventure-in-cascais.a50755504.activity-details?&rid=553248621532485458&location=Boca+do+Inferno&swp=off)

![Canoeing in the clear waters of Cascais](https://mediaim.expedia.com/localexpert/50218345/674fd079-2dbe-4ed0-a8a5-4666e7770dcf.jpg?impolicy=resizecrop&rw=500&rh=280)

### Canoeing in the clear waters of Cascais

1h

Free cancellation available

£35

includes taxes & fees

per adult

[](https://www.expedia.co.uk/things-to-do/canoeing-in-the-clear-waters-of-cascais.a50218345.activity-details?&rid=553248621532485458&location=Boca+do+Inferno&swp=off)

![Sintra: 2-Hour Private Surf Lesson at Praia Grande](https://mediaim.expedia.com/localexpert/4728459/c3f4a632-9919-43ba-924e-ade56287e11c.jpg?impolicy=resizecrop&rw=500&rh=280)

### Sintra: 2-Hour Private Surf Lesson at Praia Grande

2h

9.6/10

5 GetYourGuide reviews

Free cancellation available

£126

includes taxes & fees

per adult\*

\*Get lower prices by selecting more than 2 adults

[](https://www.expedia.co.uk/things-to-do/sintra-2-hour-private-surf-lesson-at-praia-grande.a4728459.activity-details?&rid=553248621532485458&location=Boca+do+Inferno&swp=off)

![Surf Equipment Rental](https://mediaim.expedia.com/localexpert/48132709/04afd644-1ed3-4c1c-91d6-43013e3a609b.jpg?impolicy=resizecrop&rw=500&rh=280)

### Surf Equipment Rental

Free cancellation available

£26

includes taxes & fees

per adult

[](https://www.expedia.co.uk/things-to-do/surf-equipment-rental.a48132709.activity-details?&rid=553248621532485458&location=Boca+do+Inferno&swp=off)

![Stand Up Paddle Boarding Lesson of Cascais Bay](https://mediaim.expedia.com/localexpert/49072129/6c6591be-80fa-49c9-b145-53f6dca43c4f.jpg?impolicy=resizecrop&rw=500&rh=280)

### Stand Up Paddle Boarding Lesson of Cascais Bay

1h

10/10

1 Viator review

Free cancellation available

£26

includes taxes & fees

per adult

[](https://www.expedia.co.uk/things-to-do/stand-up-paddle-boarding-lesson-of-cascais-bay.a49072129.activity-details?&rid=553248621532485458&location=Boca+do+Inferno&swp=off)

### Popular places to visit

![Gandarinha Municipal Park which includes a park](https://images.trvl-media.com/place/6081629/8faa85d3-a827-4f28-8667-b3129cd58de5.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)

#### Marechal Carmona Park

After enjoying the seaside attractions of Cascais, visit its lush park in the center of town to meet the locals and surround yourself with greenery and artworks.

[](https://expedia.co.uk/Marechal-Carmona-Park-Lisbon-District.d6081629.Attraction)

![Santa Marta Lighthouse Museum featuring general coastal views and a lighthouse](https://images.trvl-media.com/place/553248621532485460/3f5ca6b8-ecdf-42f7-a151-507d5e95c47a.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)

#### Santa Marta Lighthouse Museum

Delve into the history of this panoramic blue-and-white landmark of Cascais by browsing its beautifully repurposed lighthouse keepers’ cottages.

[](https://expedia.co.uk/Santa-Marta-Lighthouse-Museum-Lisbon-District.d553248621532485460.Attraction)

![Condes de Castro Guimaraes Museum which includes night scenes and heritage elements](https://images.trvl-media.com/place/553248621532485465/8e9548fa-a58f-4eee-b900-1047d591a370.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)

#### Condes de Castro Guimaraes Museum

Explore this century-old Mediterranean and Arabian-style mansion that still houses its original furniture, striking azulejos and a private art collection.

[](https://expedia.co.uk/Condes-De-Castro-Guimaraes-Museum-Lisbon-District.d553248621532485465.Attraction)

![Cascais Marina which includes a bay or harbour and general coastal views](https://images.trvl-media.com/place/553248621532485478/dae9abaa-c639-4b98-9fad-d653f0ad2fa7.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)

#### Cascais Marina

4/5(1 review)

Give in to the magnetic pull of this stylish boat harbor with its sleek yachts and scenic views. Wine and dine at a stylish restaurant or set out on a sailing trip.

[](https://expedia.co.uk/Cascais-Marina-Lisbon-District.d553248621532485478.Attraction)

![EyeEm Custom Shoots Q4 2018](https://images.trvl-media.com/place/6081625/60f0346c-384d-41e6-869b-7955ab101c9d.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)

#### Ribeira Beach

4.5/5(413 reviews)

If a restful holiday is part of your travel plans, Ribeira Beach might be the perfect place to visit during your trip to Cascais e Estoril. 

[](https://expedia.co.uk/Ribeira-Beach-Lisbon-District.d6081625.Attraction)

![Rainha Beach showing general coastal views, a sandy beach and a coastal town](https://images.trvl-media.com/place/553248621532485463/1b119d34-5357-44e8-8cd9-5e833c931d13.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)

#### Rainha Beach

This may be the smallest beach in Cascais, but it was once fit for a queen. Enjoy its soft sands and lovely views of the town’s fishing harbor.

[](https://expedia.co.uk/Rainha-Beach-Portugal.d553248621532485463.Attraction)

---

## Top Hotel Deals

## Check availability on hotels close to Boca do Inferno

[Tonight

](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.Package&adults=2&openPlayBack=true&regionId=553248621532485458&startDate=2026-02-07&endDate=2026-02-08)[7 Feb - 8 Feb](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.Package&adults=2&openPlayBack=true&regionId=553248621532485458&startDate=2026-02-07&endDate=2026-02-08)

[Tomorrow night

](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.Package&adults=2&openPlayBack=true&regionId=553248621532485458&startDate=2026-02-08&endDate=2026-02-09)[8 Feb - 9 Feb](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.Package&adults=2&openPlayBack=true&regionId=553248621532485458&startDate=2026-02-08&endDate=2026-02-09)

[Next weekend

](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.Package&adults=2&openPlayBack=true&regionId=553248621532485458&startDate=13%2F02%2F2026&endDate=15%2F02%2F2026)[13 Feb - 15 Feb](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.Package&adults=2&openPlayBack=true&regionId=553248621532485458&startDate=13%2F02%2F2026&endDate=15%2F02%2F2026)

![Hotel Baia](https://images.trvl-media.com/lodging/2000000/1140000/1133500/1133494/5ed6b1a5_y.jpg?impolicy=resizecrop&rw=340&ch=150)

### 

Hotel Baia

Passeio D. Luís I Cascais 

[](https://expedia.co.uk/Lisbon-District-Hotels-Hotel-Baia.h1133494.Hotel-Information)

![Vila Gale Cascais Hotel & Resort](https://images.trvl-media.com/lodging/1000000/890000/890000/889934/15ad8215_y.jpg?impolicy=resizecrop&rw=340&ch=150)

### 

Vila Gale Cascais Hotel & Resort

Rua Frei Nicolau de Oliveira, 80 Cascais 

[](https://expedia.co.uk/Lisbon-District-Hotels-Vila-Gale-Cascais.h889934.Hotel-Information)

![Eurostars Cascais](https://images.trvl-media.com/lodging/18000000/17420000/17410400/17410378/31b4235f_y.jpg?impolicy=resizecrop&rw=340&ch=150)

### 

Eurostars Cascais

Travessa da Republica, 35-35A Cascais 

[](https://expedia.co.uk/Lisbon-District-Hotels-Eurostars-Cascais.h17410378.Hotel-Information)

![Casa Vela Boutique House & SPA](https://images.trvl-media.com/lodging/5000000/4730000/4724300/4724238/70b247cd_y.jpg?impolicy=resizecrop&rw=340&ch=150)

### 

Casa Vela Boutique House & SPA

Rua Dos Bem Lembrados 17 Cascais 

[](https://expedia.co.uk/Lisbon-District-Hotels-Casa-Vela-Guest-House.h4724238.Hotel-Information)

![Grande Real Villa Italia](https://images.trvl-media.com/lodging/2000000/1650000/1646500/1646457/de41ff77_y.jpg?impolicy=resizecrop&rw=340&ch=150)

### 

Grande Real Villa Italia

Rua Frei Nicolau de Oliveira, 100 Cascais 

[](https://expedia.co.uk/Lisbon-District-Hotels-Grande-Real-Villa-Italia.h1646457.Hotel-Information)

![EVOLUTION Cascais-Estoril Hotel](https://images.trvl-media.com/lodging/1000000/10000/6300/6263/84cda75f_y.jpg?impolicy=resizecrop&rw=340&ch=150)

### 

EVOLUTION Cascais-Estoril Hotel

Avenida Marginal 7034, Estoril Cascais 

[](https://expedia.co.uk/Lisbon-District-Hotels-Evolution-Cascais-Estoril.h6263.Hotel-Information)

![Pestana Cidadela Cascais - Pousada & Art District](https://images.trvl-media.com/lodging/5000000/4800000/4796600/4796582/dacb1a80_y.jpg?impolicy=resizecrop&rw=340&ch=150)

### 

Pestana Cidadela Cascais - Pousada & Art District

Fortaleza Da Cidadela, Av. D. Carlos I Cascais 

[](https://expedia.co.uk/Lisbon-District-Hotels-Pestana-Cidadela-Cascais-Pousada-Art-District.h4796582.Hotel-Information)

![The Albatroz Hotel](https://images.trvl-media.com/lodging/1000000/810000/804700/804613/873f13ab_y.jpg?impolicy=resizecrop&rw=340&ch=150)

### 

The Albatroz Hotel

Rua Frederico Arouca, 100 Cascais 

[](https://expedia.co.uk/Lisbon-District-Hotels-The-Albatroz-Hotel.h804613.Hotel-Information)

![Legacy Hotel Cascais, Curio Collection By Hilton](https://images.trvl-media.com/lodging/92000000/91500000/91497500/91497469/a39988fc_y.jpg?impolicy=resizecrop&rw=340&ch=150)

### 

Legacy Hotel Cascais, Curio Collection By Hilton

Avenida 25 de Abril, 528 Cascais 

[](https://expedia.co.uk/Lisbon-District-Hotels-Legacy-Hotel-Cascais.h91497469.Hotel-Information)

[See all 2,073 properties in Boca do Inferno](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.Hotels.Package&regionId=553248621532485458)

Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.