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Discover Cascais with this open water swimming and hiking tour—enjoy stunning coastal views, expert guides, and authentic outdoor experiences in Portugal.
Exploring Cascais: A Day of Swimming and Hiking in Portugal’s Natural Beauty
Stepping into a day of outdoor adventure in Cascais, this experience offers a perfect blend of open water swimming and scenic hiking, all set against Portugal’s stunning coastal backdrop. While it’s not a full-day tour, the six-hour itinerary packs in memorable moments, from swimming in Cascais Bay to trekking through Sintra Cascais Natural Park. This is a great way to combine physical activity with breathtaking scenery, especially if you’re craving an authentic outdoor escapade.
One aspect we particularly love is the personalized touch — a private group experience guided by knowledgeable locals who know the area inside out. Plus, the inclusion of certified swimming coaches ensures safety and expert advice, making it suitable even for those less confident in open water. On the flip side, this isn’t the tour for those seeking a leisurely or relaxed day— it involves some energetic activity and physical effort.
This experience suits adventurous travelers eager to explore Portugal’s coastline beyond the usual sightseeing spots, especially those who appreciate guided outdoor activities that balance exercise, nature, and local flavor. If you’re after a day that’s active but not overly touristy, this might be just the ticket.
Key Points
– Authentic Outdoor Experience: Combines swimming in open water with scenic hiking through natural parks.
– Expert Guidance: Led by knowledgeable local guides and certified swimming coaches for safety and tips.
– Beautiful Scenery: From Cascais Bay’s inviting waters to the lush Sintra Cascais Natural Park.
– Flexible and Private: Perfect for private groups looking for a tailored, intimate experience.
– Healthy & Active: Great for those who want to incorporate physical activity into their trip.
– Limited for Non-Swimmers & Mobility-Impaired: Not suitable for children under 14, non-swimmers, or those with mobility issues.

This six-hour journey is designed to showcase the natural splendor of Cascais, combining swimming in the calm waters of Cascais Bay with a scenic hike in the Sintra-Cascais Natural Park. It’s ideal for travelers who love the outdoors and are looking for an active way to explore Portugal’s coast away from crowded beaches and bus tours.
The tour begins at Praia da Duquesa, a familiar starting point for locals and visitors alike. The guide, who speaks English, Portuguese, and Spanish, will meet you next to the showers, making it easy to locate. From there, the group heads to Cascais Bay for about an hour of open water swimming. Here, the focus isn’t on long-distance swims but on enjoying the water, supported by a certified coach who ensures safety and technique tips. We’ve seen reviews noting that the swimming experience is tailored to your comfort level, which makes it accessible for most, provided you’re comfortable in water.
After swimming, the tour takes a short 15-minute van ride to Cresmina, where a light lunch with scenic views of sand dunes waits. Guests can relax, soak in the vistas, and enjoy a moment of calm before heading into the next segment of the adventure—the hike.
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Post-lunch, another 15-minute van ride transports the group to the Sintra Cascais Natural Park, where a 2-hour hike unfolds. This part of the experience offers a completely different perspective—wild landscapes, lush greenery, and sweeping views of the coastline. The guide’s expertise truly shines during this section, as they share insights about the park’s flora and fauna, making the walk both educational and invigorating.
The hike is flexible enough to accommodate different fitness levels, but expect some uneven terrain and elevation changes. This is not a leisurely stroll; it’s a genuine outdoor walk designed to showcase the park’s natural features. Reviewers appreciated the knowledgeable guides who pointed out interesting details, like native plants and local wildlife.
The entire experience is conveniently organized with transportation included between all key points, removing the hassle of navigating by yourself. The meeting point at Praia da Duquesa simplifies logistics, and the tour ends right back where it started. The private group setting ensures a more personalized experience, with the guide tailoring the pace and attention to your group’s needs.
The tour includes a swimming cap and glasses, and water and snacks are provided during the hike, ensuring you stay energized. It’s worth noting that lunch is not included, but the scenic bar at Cresmina serves simple, tasty options with a view, making it easy to grab a quick bite and enjoy the surroundings.
Guests appreciate the expert guidance and the emphasis on safety, especially during the water segment. One reviewer mentioned, “The guide was very attentive, making sure everyone was comfortable in the water. It felt very safe and fun.” Others highlighted the stunning views during the hike, calling it “a true highlight,” with some noting the “beautiful diversity of landscapes” encountered.
Some reviews pointed out that while the swimming is not strenuous, it does require a basic comfort level in open water, especially since timing and distance depend on your experience. The balance of activity and relaxation makes it appealing to those who want an active day but still enjoy scenic breaks.
This experience is best suited for adventurous travelers who enjoy outdoor activity, physical exercise, and nature. It’s perfect if you’re comfortable swimming in open water and want a guided, safe environment. Families with children over 14 who are confident swimmers may find it enjoyable, but it’s not designed for non-swimmers or those with mobility issues.
The private group format makes it ideal for couples, friends, or small groups seeking a more tailored adventure. It’s less suitable for travelers who prefer a leisurely, relaxed day or those with specific dietary restrictions, as lunch is not included.

This Cascais tour offers a refreshing blend of activity and scenery that can genuinely enrich your Portugal trip. For those who love to move and explore, it delivers on both fronts — with stunning coastal views, expert guides, and a chance to swim in the ocean like a local. It’s an excellent value for the experience, especially considering transportation, guidance, and safety gear are included.
If you’re after a unique outdoor adventure that combines fitness with natural beauty, this tour fits the bill. Whether you’re a seasoned swimmer or a keen hiker, it’s a chance to see Cascais from a different perspective while staying active and engaged.
For travelers seeking a way to connect with Portugal’s wild side—away from crowded beaches or city streets—this experience provides an authentic taste of its natural charm. It’s a memorable, well-organized outing that balances adventure, comfort, and spectacular scenery.

Is this tour suitable for beginners?
Yes, as long as you’re comfortable swimming in open water and can handle some walking. The swim is tailored to your experience level, and the guides are attentive to safety.
What should I bring for the tour?
Bring comfortable shoes, a hat, swimwear, a towel, sunscreen, and comfortable clothes. You might also want to rent a wetsuit if you prefer extra warmth, which can be arranged after booking.
Is lunch included?
No, lunch is not included. However, there is a scenic bar stop at Cresmina where you can buy food and enjoy panoramic views.
Can non-swimmers join?
This tour isn’t suitable for non-swimmers, as swimming in the bay is a core part of the experience.
What’s the group size?
It’s a private group experience, ensuring personalized attention and a relaxed atmosphere.
How long does each activity last?
The swim in Cascais Bay lasts around an hour, and the hike is about 2 hours. The total duration is approximately 6 hours, including transport and breaks.
Is transportation provided?
Yes, transportation between the start point, lunch spot, and the park is included, making logistics simple.
What if I need to cancel?
You can cancel up to 24 hours in advance for a full refund, offering flexibility in case your plans change.
Overall, this Cascais open water swimming and hiking experience offers a well-balanced, authentic taste of Portugal’s natural environment. It’s perfect for active travelers eager to combine exercise with breathtaking scenery, all guided by friendly experts who genuinely know the area. If you’re looking for a memorable outdoor adventure that goes beyond the typical sightseeing, this could be just what your trip needs.