Two guided dives in Sesimbra’s maritime reserve introduce divers to rocky pinnacles, wreck sites and abundant marine life. Small groups, supplied gear and year-round departures make this a straightforward half-day scuba experience from the Lisbon region.
More ways to explore the area's outdoor wonders
The boat cuts a clean line through the Atlantic swell as Sesimbra’s limestone headlands tighten into view; gulls wheel and the harbor hums with small fishing boats. Drop into the clear cold and the reserve takes over—rocky pinnacles, bands of algae and anemone, and schools that thread between boulder corridors. The sea here feels alive and deliberate, nudging divers toward pockets of color and shadow.
Difficulty
moderate
Duration
3 hours
Fitness Level
Comfortable basic fitness and ability to swim; suitable for a wide range of diver fitness levels as long as medical clearance is met
Wildlife
History
Sesimbra evolved from a fishing village; its protected reserve preserves both living reefs and several shallow wrecks that tell of the region’s maritime past.
Conservation
The reserve enforces no-take rules and operators follow strict no-touch, no-take practices—use reef-safe sunscreen and minimize disturbance to sediment and flora.
Reserve your spot on the Double dream dive on a Maritime Reserve today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring your certification card
This experience is for certified divers; bring proof of certification and any medical notes.
Check suit thickness
Water can be cool—ask about recommended wetsuit thickness for the season and bring a hood if sensitive to cold.
Protect marine life
Do not touch fauna or collect artifacts; neutral buoyancy prevents contact with reef and wrecks.
Charge your dive camera
If you plan to photograph, bring spare batteries or memory—briefings often point to the best photo sites.
Wetsuit (5mm+ in cooler months)
Keeps you warm during spring dives when water can still be cool
spring
Dive computer
Tracks depth and bottom time for safe multi-dive profiles
Mask and fins (personal)
Personal fit improves comfort and reduces leaks during longer dives
Waterproof camera or housing
Captures reef life and wrecks; low-light options are useful in deeper or shaded sites
summer