moderate
4–6 hours including swim and boat ride
Participants should have good endurance and comfort with open water swimming over several kilometers.
Swim Together’s Arrábida Island Tour offers a stunning open water swim from Alpertuche Beach to Galapinhos Beach in Portugal’s Serra da Arrábida Natural Park. This day trip includes a scenic boat ride back with dolphin sightings and a local lunch in Sesimbra.
Water temperatures fluctuate between 14ºC and 22ºC; bring a suitable wetsuit to stay comfortable.
This swim covers 3–5 km in open ocean conditions, so prior endurance swimming is recommended.
Punctual arrival at the meeting point ensures a timely start and full safety briefing.
Even with partial boat time, swimmers spend hours exposed to sun—use waterproof sunscreen and wear a swim cap.
The Serra da Arrábida park was established in 1976, protecting one of Portugal’s last remaining Mediterranean ecosystems and a rich maritime habitat vital to local fishing communities.
Swim Together practices low-impact tourism by limiting group sizes and educating participants on preserving marine biodiversity and minimizing waste on land and sea.
Keeps you insulated in cooler Atlantic waters for comfort and safety.
spring|fall|winter specific
Improves visibility during the swim and helps retain heat.
all specific
Protects skin from extended sun exposure on water and during boat rides.
summer specific
Helpful for rocky entry and exit points on beaches along the route.
all specific