Reserva Natural das Berlengas, Berlenga Grande (Peniche) · 포르투갈 페니셰(베를렝가스)
Location
Overview
Berlenga Grande is a granite island about 10 km off Peniche on Portugal's Atlantic coast, protected as a nature reserve since 1981 and named a UNESCO World Biosphere Reserve in 2011. It holds some of mainland Portugal's clearest water: in the sheltered, shallow coves you can watch sea breams, sea bass, octopus, moray eels and colourful nudibranchs, with a chance of sunfish or even dolphins. Depths are usually just a few metres, so it suits families and beginners, and visibility peaks in June and September. As of 2026 daily access is still capped at 350 visitors, so a boat ticket and an entry permit (BerlengaPass) are both required.
Clear Atlantic water threaded with granite sea caves and natural arches
Sea breams, sea bass, octopus, moray eels and vivid nudibranchs
Octopus and small corals around the São João Baptista fort
Beginner-friendly snorkel spots in the wind-sheltered anchorage coves
Glass-bottom cave tours and the chance to meet sunfish or dolphins
Good to know
SafetyThis is the open Atlantic: water stays a cool 17-21°C even in summer. Long sessions risk hypothermia, so a wetsuit is strongly advised. Get out of the water once you start shivering.
SafetySwell and currents on the exposed sides can push you toward open sea. Stay in the wind-sheltered inner coves, never snorkel alone, and use a float or buoy while keeping close to your group or boat.
SafetyThe anchorage bay carries boat and glass-bottom tour traffic. Use a bright surface marker, stay clear of boat lanes, and don't overextend — mask fogging or a panic moment can catch out beginners.
SafetyYou cross 40-45 minutes of open ocean by speedboat from Peniche, so seasickness is common. Watch for sea urchins and sharp rock, and if you're new, start in the shallow, calm coves before venturing out.
RulesThis is a marine protected area. Don't touch or take anything from the seabed and never stand on corals or rocks. Use reef-safe sunscreen.
RulesYou need both a BerlengaPass (ICNF) entry permit and a boat ticket, with a cap of 350 visitors a day and a stay of up to about 4 hours. In July and August the quota fills fast, so book online well ahead.
SeasonIsland access generally opens only from mid-May to late September. June and September bring fewer crowds and the clearest water; summer sea temperatures run 17-21°C.
Practical info
Reach Peniche (about 1.5 hours by car from Lisbon), then take a 40-45 minute speedboat to the island. Snorkeling needs no special training and the calm summer coves suit families, but you must hold both a boat ticket and a BerlengaPass (ICNF) entry permit, and daily numbers are limited. Season, opening dates, fees and the visitor cap change year to year, so confirm the latest details with the operator and ICNF before you go.
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