Sight
Boca do Inferno
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Boca do Inferno, meaning 'Mouth of Hell,' is a striking coastal formation near Cascais. Visitors gather on the clifftop viewing platform to watch Atlantic waves funnel through a natural arch, often exploding into towering plumes of spray. The site is especially dramatic during high tide or stormy weather. A short walking path leads from the town center, and nearby cafes offer spots to sit and admire the relentless power of the sea.
Don't miss
- Watch waves crash through the natural arch and erupt into mist
- Photograph the rugged cliffs and ocean views at sunset
- Walk the coastal path linking Cascais to Boca do Inferno
Tickets & tours
Ways to visit Boca do Inferno
You can usually visit on your own. A tour is worth it for transport, a guide, or combining nearby sights into one day.
Cheapest way inCascais: Glamour and Decay by The Lisbon Coastline - Private Tour4.9★ · 59 travelers3-4 hoursFree cancellationFrom$35 per personSee dates →
Most bookedCascais Coastal Secrets 90 Minute Cruise with Free Wine and Beer5★ · 27 travelers~2 hoursFree cancellationFrom$44 per personSee dates →
Private & flexibleCascais coastal escape: 2h of views, cliffs & ocean5★ · 14 travelers~2 hoursFree cancellationFrom$168 per personSee dates →Getting there
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