Swap Lisbon’s city streets for the sheltered coves of Arrábida on a private day trip that pairs guided scuba dives with a beach lunch and winery tasting in Sesimbra. Expect clear water, kelp gardens, and professional instruction suitable for beginner divers.
More ways to explore the area's outdoor wonders
You step off the van where the cliffs of Arrábida bend toward the Atlantic and the sea exhales a cool, mineral-scented breeze. Boats bob in the sheltered cove while instructors check gauges and fins; below, translucent water teases at reefs and rock faces that drop away into blue. For the day you leave Lisbon’s bustle for a coastal playground where the ocean dares you to look deeper.
Difficulty
moderate
Duration
8 hours (approx.)
Fitness Level
Comfortable with basic swimming skills and able to climb in/out of small boats; general good health and no respiratory or severe cardiac conditions.
Wildlife
History
Arrábida’s cliffs and coves were historically used by fishermen and mariners; the area’s limestone formed in a shallow sea and later uplifted, creating caves and diveable rock faces.
Conservation
Parts of the Arrábida coast are protected marine areas; divers are encouraged to avoid touching reefs, use reef-safe sunscreen and follow guide instructions to minimize impact.
Reserve your spot on the Lisbon Active Tourism - Diving in Arrábia - Sesimbra today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring a reef-safe sunscreen
Apply biodegradable sunscreen before arrival to protect marine life during surface intervals and shore entries.
Know your mask fit
Arrive with a properly fitted mask or test one at orientation — a good seal saves time and frustration underwater.
Hydrate and avoid alcohol
Drink water before and after dives; avoid alcohol 24 hours before diving to reduce dehydration and decompression risk.
Check wind and swell forecasts
Calmer mornings give the best visibility and easier entries — ask guides about optimal start times for the day.
Swimsuit and quick-dry layers
Wear under exposure gear and for shore-side comfort during surface intervals.
Mask/snorkel/fins (if you prefer personal gear)
Rental gear is included, but well-fitted personal equipment improves comfort and fit.
Lightweight hooded wetsuit or 3–5mm wetsuit
Provides thermal protection during cooler months and extended surface intervals.
spring|fall|winter
Reusable water bottle and small dry bag
Staying hydrated and keeping valuables dry on the boat makes the day smoother.
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