La Palma, the most north-westerly island of Spain’s Canary Islands, is preparing to host the fourth edition of the KOS Xtreme Triathlon on May 31, 2025. The event is organized by Beyond Xtreme Limits (BXL) and supported by Breña Alta City Council and La Palma Island Council.
The event motto ‘from the ocean to the stars’ (Spanish: ‘desde el océano a hasta las estrellas’) highlights the route of the event, where triathletes swim in the ocean and ride their bikes to the mountains, and then run between telescopes at one of the world’s premier astronomical observatories.
The route combines 2km of swimming in the North Atlantic Ocean, 42km of cycling with 2,500m of elevation gain and a final 10km run with an elevation gain of 490m.
KOS Xtreme Triathlon culminates at the Roque de Los Muchachos at 2426m above sea level. It tests the endurance of participants, with a limited number of participants. For the third time, next year’s event is part of of the Canary Islands Cup, organized by FECANTRI, which adds an additional attraction for local and international competitors.
Race Director Rafael Matos Santos said “Throughout their lives, endurance athletes push their bodies to the limit to prove to themselves that they are capable of achieving their goals.
“Very few athletes have gone from the ocean to the stars and crossed the finish line. KOS Xtreme Triathlon exists because we love triathlon and we want you to be able to experience something different in a unique environment on the planet.
“We’re not just selling race slots. KOS is all about adventure, sharing, pushing your limits and adding one more achievement in your life.”
Previous event editions have brought together athletes from different nationalities representing countries such as Spain, Chile, Austria, Bahrain, Great Britain, Argentina and Australia.
With a number of transport options, La Palma Airport is served by regional airlines (Binter Canarias and CanarFly) and various international airlines, with flights to and from Tenerife and Gran Canaria. There is also a ferry service between the city of Santa Cruz de La Palma and the islands of Tenerife and Gran Canaria.







