SESIMBRA BOAT TOUR FIELD GUIDE
Swim the Caves of Ribeira do Cavalo — Arches, Emerald Water and a Chance of Dolphins
A one-day, 3 km swimming and boat tour from Sesimbra Marina that explores Ribeira do Cavalo’s caves and natural arches, finishes with lunch ashore and offers likely dolphin sightings.
Swim the Caves of Ribeira do Cavalo — Arches, Emerald Water and a Chance of Dolphins.
From the blue inlet of Sesimbra you launch into an outdoor swimming route that threads turquoise and emerald seas, grazes rocky islands and natural arches, and slips into coastal caves. The day culminates with a typical Portuguese lunch ashore and a boat return to Sesimbra where dolphin encounters are a real possibility.
Highlights
Outing Highlights
Ribeira do Cavalo’s Turquoise Coves
A wild, paradisiacal beach framed by rocky islands and natural arches where the sea shifts between turquoise and emerald — the defining visual of this swim route.
Boat Departure and Cave Swims
You depart from Sesimbra by boat and swim a coastal course that passes Enseada da Mula and the Gruta do Frade, threading holes and rocky walls that characterize this coastline.
Dolphin Chances and a Local Lunch
The trip ends with a boat return to Sesimbra where there is a high probability of seeing dolphins, followed by a meal at a typical Portuguese tavern and a short visit to the region.
What the day feels like
What the Day Feels Like
It’s a focused day on the water: a short boat ride from Sesimbra Marina to the Ribeira do Cavalo inlet, a guided swim through marine-rich shallows and along cave‑cut rock faces, then a relaxed return by boat with the chance to watch dolphins before stepping ashore for lunch and local exploration.
Suitability
Who it's for
Who this day works for — and who should check with the operator first.
Practical planner
Details to review before reserving
Duration is a single-day outing covering approximately 3 km of swimming and boating.
This is an outdoor swimming experience; sea temperatures range from 14ºC to 22ºC (57ºF–72ºF). Plan gear accordingly.
Meeting point is Marina de Sesimbra, from where the operator departs by boat.
Review cancellation policies before reserving.
Frequently asked questions
Planning Your Outing
How long is the tour and what distance is covered?
The experience is a one‑day outing covering about 3 km.
Where do participants meet for departure?
Meet at Marina de Sesimbra for the boat departure.
Will we have the chance to see dolphins?
There is a high probability of seeing dolphins on the boat trip back to Sesimbra.
Is food provided?
The day includes a delicious lunch at a typical Portuguese tavern as part of the experience.
What are the sea temperatures during the swim?
Sea temperatures range between 14ºC and 22ºC (57ºF–72ºF).
What will we actually do on the water?
Participants board a boat from Sesimbra, swim along a coastal route that passes caves, arches and rocky walls (including Enseada da Mula and Gruta do Frade), then return by boat.