Open Water Swimming in Portugal: 7 Events to Add to Your Summer Calendar
Portugal continues to establish itself as one of Europe’s top destinations for open water swimming. With its stunning coastline, rivers, reservoirs and ideal summer conditions, the 2026 calendar offers exciting opportunities for swimmers of all levels, from first-time participants to experienced endurance athletes.
If you’re looking for your next challenge, these are some of the open water events worth adding to your calendar.
Global Ocean Cascais 2026
Taking place on July 4 in Cascais, the Global Ocean Cascais offers a variety of distances, including 300 m, 1.5 km, 3 km and relay formats.
With the Atlantic Ocean as its backdrop and one of Portugal’s most iconic coastal settings, this event is a great choice for swimmers looking to experience open water racing in a spectacular location.
XX Travessia Bessone Basto
Held on July 5 in Oeiras, this event is one of the traditional open water swimming races in the Lisbon region.
The 1,000 m distance makes it accessible to swimmers who are new to open water competitions while still providing an enjoyable challenge for more experienced participants.
12th Mora Open Water Swimming Event
On July 12, the beautiful Açude do Gameiro in Mora hosts another edition of this well-established event.
With distances ranging from 400 m to 1.5 km and 3 km, it offers options for swimmers with different experience levels in a relaxed and scenic summer environment.
Swim Grand Prix 2026
Widely regarded as Portugal’s premier open water swimming event, the Swim Grand Prix returns to Cascais on July 18 and 19.
The programme includes distances from 1 km all the way up to 20 km, as well as races for children and younger swimmers.
For athletes seeking a true endurance challenge, this is one of the highlights of the Portuguese swimming calendar.
VI Meeting de Águas Abertas da Goma
The Barragem das Andorinhas hosts this event on August 1.
Offering a different experience from coastal races, the event takes place in inland waters and provides swimmers with a unique natural setting and a welcoming atmosphere.
Queimadela Reservoir Race – 10th Edition
Taking place on August 2 in Fafe, the Queimadela Reservoir Race celebrates its 10th edition.
Featuring a 1,000 m course, it is an excellent option for swimmers looking to gain experience in open water competitions or maintain their racing momentum throughout the summer.
Why Try Open Water Swimming?
Open water swimming presents challenges that are very different from those found in the pool. Natural conditions, navigation, changing water environments and race strategy all contribute to making every event unique.
Beyond the sporting challenge, these races offer the opportunity to discover some of Portugal’s most beautiful coastal and inland locations while connecting with a growing community of swimmers.
Find Your Next Swimming Event
Portugal’s open water swimming calendar continues to grow, offering races suitable for beginners, experienced swimmers and endurance athletes alike.
Whether you’re looking for your first open water experience or preparing for a long-distance challenge, you can find these and many other swimming events on RaceFinder and start planning your next adventure today.
