Gain open-water confidence with a guided swim along the Bay of Cascais. Personalized coaching, route options from 1.5 km up, and video feedback make this an ideal step from pool to sea.
More ways to explore the area's outdoor wonders
The sea off Cascais opens like a long, cooling breath — the Atlantic pushing gentle swells into the bay while cliffs and a strip of pebble beach frame your launch.
Difficulty
moderate
Duration
1 hour
Fitness Level
Expect to be in moderate cardiovascular shape; able to swim continuous distances of 1–2 km comfortably.
Wildlife
History
Cascais evolved from a fishing village into a royal seaside retreat in the 19th century, leaving a coastline shaped by centuries of maritime activity and stone quarries.
Conservation
Swimmers should avoid disturbing seagrass beds and marine life; use reef‑safe sunscreen and follow guides’ instructions to minimize impact.
Reserve your spot on the Open-Water Swimming in Cascais today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Check wind and swell before you go
Wind-driven swell changes conditions quickly; ask your guide about the forecast and avoid higher swells if you’re new to open water.
Use a tow buoy for visibility
A bright swim buoy increases safety, visibility to boats, and gives a place to rest if needed.
Practice sea sighting
Look up every 20–30 strokes to orient to the coastline — it conserves energy and keeps you on course.
Warm up and warm down
Bring a warm layer and a hot drink; body temperature can drop quickly after a cold Atlantic swim.
Well‑fitting swim goggles
Clear sighting and comfortable fit are essential for navigating and technique work.
Tow buoy / swim float
Increases visibility to boats and provides emergency flotation and rest.
Wetsuit (rental available)
Keeps you warm in spring/fall water temperatures and adds buoyancy; rentals often offered by guides.
spring
Towel and warm layer
Necessary for post-swim recovery—Atlantic winds cool you fast after exiting the water.