Strel Swimming Adventures was founded in 2010 by father and son Martin and Borut Strel.

Both Martin and Borut are passionate swimmers who have had many successes (and adventures!) in some of the World´s greatest waters.

Martin Strel, also known as the “Big River Man”, is a renowned professional marathon swimmer, and promoter of peace, friendship and clean waters. He is also a Guinness World Record holder and has been described as the World’s Greatest Marathon Swimmer, having swum the 5 greatest rivers in the world: Amazon, Yangtze, Paraná, Mississippi and Danube.

Martin’s next big ultra-marathon swimming challenge is to be announced soon. Stay tuned for further updates. He accompanies some of our tours when his schedule permits to share his vast experiences in the open water swimming.

Borut Strel (guide) is also an experienced open water swimmer. He is Martin’s lead guide, personal assistant, and project manager for Martin’s swimming expeditions. Borut also has significant experience in coaching and guiding swimmers at several locations across the Mediterranean (Croatia, Italy, Greece, Turkey, Montenegro, Lake Powell-Arizona). Borut is the driving force behind Strel Swimming Adventures and has passed on his vast experience to our guiding team to ensure that our tours are second to none.

We are proud of our strong family tradition in the open water swimming world. We promise to stand behind our name and deliver top customer service and a fantastic experience. Our collaboration with our partners also means that our guests will have the best equipment available, as well as other trip arrangements and support.

Since 2011 we have hosted thousands of swimmers on our locations and many have become our close friends. We are proud to keep 50%+ return rate on our trips over the years.

We look forward to seeing you swimming with us.

Strel Swimming currently operates the following swimming tours during May – October season:

Swimming in Croatia: Island Hopping – Krapanj island (7 days)
Swimming in Croatia: Elaphiti Islands Dubrovnik – Sipan island (5 days)
Swimming in Turkey: Swim Sail Cruise – Gulf of Hisaronu (8 days)
Swimming in Turkey: Swim Sail Cruise – Lycian Way (8 days)
Swimming in Turkey: Lycian Coast – Kas (7 days)
Swimming in Montenegro: Fjord and Cove Swimming (6 days)
Swimming in Greece: Symi Swimming Odyssey (7 days)
Swimming in Slovenia: Slovenian Lakes and River (4 days)
Swimming in Arizona (USA): Lake Powell Canyons (4 days)

Strel Swimming Holiday Trips Video:

Martin Strel Video – HUMAN LIMITS: