Berlengatur Glass-Bottom Boat Caves Tour in Portugal
Difficulty
easy
Duration
4 hours
Fitness Level
Suitable for most fitness levels; involves moderate walking on uneven terrain and a seated boat ride.
Overview
Step aboard a glass-bottom boat with Berlengatur and uncover the mesmerizing underwater caves of Berlenga Grande. Between vibrant marine views and rugged island trails, this experience uniquely blends sea and land adventure off Portugal’s coast.
Pacote 2 - Grutas
Entre 4 horas • Todas as idades • Visita às Grutas de Barco • Viagem de ida e volta
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About This Adventure
Embark on a unique adventure to the Berlengas Caves aboard a glass-bottom boat! Experience the mesmerizing underwater world as you explore stunning caves like the Blue Cave and St. John the Baptist Cave. With time to hike the island's trails and visit Fort St. John the Baptist, this trip promises unforgettable memories.
Visite as Grutas das Berlengas num Barco com Fundo de Vidro!
Duração
4 Horas
Acerca
Inclui a viagem de ida e volta à Berlenga Grande e visita às grutas!
Grutas A visita às grutas é previamente organizada e é efetuada num barco com fundo de vidro acompanhado por um guia, onde pode observar o mundo subaquático e entrar em algumas grutas, nomeadamente a gruta Azul, a gruta de S. João Batista a cova do sonho e entre outras. Têm a duração de 30 minutos.
Adventure Tips
Bring layers for changing weather
Ocean breezes can be cool even on sunny days, so pack a light jacket for the boat and island hikes.
Wear sturdy shoes for trails
Island paths are uneven and rocky—good grip and ankle support improve safety and comfort.
Use reef-safe sunscreen
Protect your skin and the sensitive marine ecosystem visible below the boat’s glass bottom.
Reserve your spot early
Boat tours fill quickly, especially in summer months. Booking in advance secures your trip.
Local Insights
Wildlife
- Atlantic puffins nesting seasonally on the cliffs
- Moray eels often seen beneath the boat’s glass bottom near rocky outcrops
History
Fort St. John the Baptist was constructed in the 17th century to defend the coast from pirate raids and now serves as a striking historical site.
Conservation
Berlengas is a designated biosphere reserve, with efforts focused on limiting visitor impact and preserving marine and bird habitats.
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Adventure Hotspots in Peniche
Frequently Asked Questions
Recommended Gear
Light jacket or windbreaker
Useful for protecting against cool sea breezes during the boat ride and island walk.
spring specific
Sturdy hiking shoes
Needed for traction and comfort on rocky island trails.
Sunscreen (reef-safe)
Helps shield skin from sun and protects marine life viewed beneath the glass boat floor.
summer specific
Reusable water bottle
Staying hydrated during the hike and boat trip is critical, especially in warmer months.