
Open-Water Swimming in Cascais
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September 2026
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Who is going?
Adults
Age 13 and over
Children
Age 12 and under
Select a highlighted day to see live departure times and the exact price for your group.
Free cancellation up to 24 hours before. Same price on Viator, Outty earns a commission.
Traveler rating
5.0/5
Based on 82 traveler reviews. Ratings and reviews provided by Viator and Tripadvisor.
Quick answer
Is Open-Water Swimming in Cascais worth booking?
Open-Water Swimming in Cascais is a 1-hour experience in Cascais, Portugal, from $50 per person. It scores 82 out of 100 on the Outty Ranking, which we label “Exceptional”, based on a 5/5 rating across 82 reviews. Cancellation is free up to 24 hours before the start time. Same-day spots are currently showing.
- Outty Ranking
- 82 / 100
- Rating
- 5/5 (82)
- Duration
- 1 hours
- From
- $50 per person
Discover breathing, swimming, and anxiety management techniques. Learn how to check the weather and understand currents for optimal swims. Improve your technique with the help of a professional guide Enjoy the perfect
What you get
- Swim cap (our offer)
- Experienced guides
- If you need, we can provide a swim buoy
- Personal Accidents Insurance
- Photos and videos included
About this experience
Discover breathing, swimming, and anxiety management techniques. Learn how to check the weather and understand currents for optimal swims. Improve your technique with the help of a professional guide Enjoy the perfect combination of relaxation and adventure on this open-water swimming lesson in Cascais. Meet your tour guide at Praia da Duquesa Beach for a quick safety briefing and introduction. Next, enjoy a brief warm-up then jump into the sea for an acclimatization swim nearby before beginning your adventure along the Cascais coast. Take in panoramic views of the Bay of Cascais as you swim in the company of your guide. The guide will provide you with feedback throughout the tour and will take photos and videos which you can use to improve your technique. At the end of the tour, warm up with a hot mug of tea.
What's included
Included
- Swim cap (our offer)
- Experienced guides
- If you need, we can provide a swim buoy
- Personal Accidents Insurance
- Photos and videos included
Not included
- Tips for your guides
- Wetsuit rental (€30/person)
Where it starts and ends
Meeting point
Cascais
Car park.
Hotel pickup
No pickup: everyone meets at the start point.
Ends at
Car park.
Before you book
- Cancellation
- For a full refund, cancel at least 24 hours before the scheduled departure time.
- Languages
- pt, en, es
- Ticket
- Mobile Only
- Runs on
- Every day
- Group size
- Up to 10 travelers per booking
- Operated by
- SwimTogether Swimming Holidays
Know before you go
- Public transportation options are available nearby
- Travelers should have at least a moderate level of physical fitness
Photos






Good to know
- Duration
- 1 hours
- Free cancellation
- Up to 24h before
- Minimum age to book
- 7+
- Availability
- Bookable today
- Runs on
- Every day
- Hotel pickup
- No pickup, meet at start point
- Booked in 30 days
- 29
- Verdict
- Exceptional
Why this scores 82
The Outty Ranking is a weighted composite. Here is how this experience performed on each component.
Open-Water Swimming in Cascais: questions travelers ask
Practical detail on this experience, plus the wider planning questions for Cascais.
How much does Open-Water Swimming in Cascais cost?
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Prices start at $50 per person. The final price depends on the date, the time slot and the number of travelers, and peak weekends in Cascais usually price higher than midweek mornings. Live pricing and remaining availability are confirmed on the booking screen before you pay.
How long does Open-Water Swimming in Cascais take?
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Plan for about 1 hour from start to finish, not counting travel to the meeting point. Most travelers leave another 30 minutes on either side so the rest of the day in Cascais is not rushed.
Is Open-Water Swimming in Cascais worth it?
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It holds an Outty Ranking of 82 out of 100, which we label "Exceptional". That score blends traveler sentiment (5/5 across 82 reviews), the depth of that review evidence, recent booking momentum, value for money against comparable last minute in Cascais, and how flexible the cancellation terms are.
Can I cancel or reschedule Open-Water Swimming in Cascais?
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Yes. Cancel free up to 24 hours before the start time for a full refund. Inside that window the booking is non-refundable, and no-shows are not refunded.
Is Open-Water Swimming in Cascais suitable for kids and families?
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The operator sets a minimum age of 7. Older children generally do well here, and families should factor in the 1-hour running time when deciding.
How far in advance should I book Open-Water Swimming in Cascais?
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Around 29 people booked this in the last 30 days, so popular slots go early. Two to three weeks ahead is comfortable in shoulder season, while summer weekends and holidays in Cascais can sell out a month out. Same-day spots do open up when other travelers cancel, so it is worth checking if you are already in town.
What should I bring or wear?
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Bring photo ID, your booking confirmation on your phone, a refillable water bottle and comfortable shoes. Dress for the weather in Cascais and add a light layer if any part of the 1-hour experience runs outdoors or after sunset.
Where does Open-Water Swimming in Cascais start and how do I get there?
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The exact meeting point and directions are on your voucher once you book, and they sit in central Cascais within reach of public transport. Arrive 15 minutes early: late arrivals are treated as no-shows by most operators.
What are the best things to do in Cascais?
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On Outty we rank every Cascais experience on the same 0 to 100 scale, and alongside this one the highest scorers right now include Surf Experience in Cascais, Best of Sintra Private Tour with Local Guide & Hotel Pickup, E-bike in the backroads of Cascais and Sintra. The city page groups everything into most popular, highest reviewed, last minute and family-friendly so you can build a day around what actually delivers.
When is the best time to visit Cascais?
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Booking patterns follow the same curve: prices and queues climb in peak weeks, while shoulder season gives you better availability on the top-ranked experiences and more room to change plans.
How many days do you need in Cascais?
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Three full days covers the headline sights without sprinting. A workable rhythm is one anchor experience each morning, such as this one, an unhurried afternoon in a single neighborhood, then a food or nightlife booking in the evening. Five days lets you add a day trip outside the city.
Do I book through Outty or through the operator?
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Outty ranks and explains the experiences, then hands you to Viator to complete the booking with the operator directly. The price is the same as booking on Viator yourself, and Outty earns an affiliate commission on the referral, which is how the rankings stay free to read.
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