What this place feels like
Very adventurous with very nature-focused, very classic, somewhat local character.
Boca do Inferno
Discover the haunting beauty of Boca do Inferno, the 'Hell's Mouth', a stunning geological site on the rugged coastline of Cascais, Portugal. Watch as the wild Atlantic Ocean crashes into dramatic cliffs and cavernous rock formations under a soft, overcast sky. The sound of waves and the salty sea breeze blend with the sight of lush green vegetation clinging to the rocky surfaces, creating an evocative experience for nature lovers and thrill seekers alike. Feel the raw, untamed power of nature while exploring this iconic Portuguese landmark, perfect for those who crave awe-inspiring landscapes and a moment of serene escape by the sea.
Spring and early summer for mild weather and lush greenery
Book with ViatorMost videos filmed Jul during summer. August is busy - one of the most popular times to visit.
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Spring and early summer for mild weather and lush greenery
1–2 hours
Comfortable walking shoes, Windbreaker or light jacket, Sun protection, Camera or smartphone for photos, and Water bottle
Nature Lovers, Solo Travelers, Couples, Adventure Seekers, and Photographers
The nearest airport is Lisbon Humberto Delgado Airport (LIS), about 30 minutes by car from Cascais.
Enjoy stays at charming seaside hotels, boutique guesthouses, and luxury resorts in Cascais and along the Lisbon coast.Book a stay →
Combine your visit with surfing lessons at Guincho Beach, exploring Cascais Old Town, or a wine tasting tour in the Lisbon region.
Free entry
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One of 184 clips our travelers have filmed in Cascais