Ironman Switzerland Thun

July 2025

A will of steel and vibrant emotions in the Bernese Oberland

Experience all the emotion of the race up-close and be a part of Ironman Switzerland in Thun. Whether an athlete on the track or watching from the grounds, in this thrilling competition, a dynamic atmosphere and unforgettable moments are guaranteed. Against a stunning mountain backdrop, these steely athletes swim 3.8 km in the 17-degree waters of Lake Thun, cycle 180.2 km through the luscious green hinterland and run 42.2 km along the deep-blue waters of Lake Thun until, exhausted but euphoric, they reach their ultimate goal.

Ironman Switzerland at a glance

  • Date: July 2025

  • Location: Thun

  • Food/Drink: Various food and drink stands on the grounds

  • Conditions of entry at www.ironman.ch

     

Endurance against a majestic mountain backdrop

The legendary race began in Zurich 23 years ago and, in 2021, for the very first time, is taking place at a new venue in Thun. Here you will be greeted by the deep-blue waters of Lake Thun, nestled in the imposing Alps of the Bernese Oberland. Experience Swiss culture and a mountain landscape in all its most attractive facets. Marvel at the three world-famous peaks of Eiger, Mönch and Jungfrau from the grounds and let yourself be amazed by the breathtaking backdrop.

The disciplines

Radfahrer unterwegs

Watch the athletes as they dive into the glassy 17-degree waters of Lake Thun and swim 3.8 km before a breathtaking mountain backdrop. Two laps of the 180.2-km cycle track then take the athletes towards Spiez, where they turn away from the lake towards Gürbetal. The picturesque track continues towards Bern Airport and Gantrisch. A gentle descent brings these steely men and women back to the transition area. From here you can watch the athletes complete three laps of the running track, which measures a total of 42.2 km. The track runs along the banks of the lake past the grounds and through the gorgeous park at Schadau Castle; the athletes then cross the historic Scherzligschleuse bridge before reaching the finish line and a much-deserved rest.

Ironman Village

Schwimmer macht einen Kopfsprung ins Wasser

Alongside the race itself, numerous events take place in the grounds from the previous day. There’s the “Kids Paradise” for the kids, while grown-ups can find inspiration in the Ironman Expo and shop or relax in the Food Village. Further information can be found at www.ironman.ch.

Reasons to attend Ironman Switzerland

  •  

    Competitive sport in front of a breathtaking backdrop comprising Lake Thun, the Eiger, Mönch and Jungfrau

  • A unique, emotion-fuelled sporting experience in the heart of nature

  • Put your will of steel to the test

  • Various disciplines including swimming, cycling and running

  • See limits being smashed and dreams coming true

Your accommodation in Thun: An overnight stay with a view of the Eiger, Mönch and Jungfrau.

Experience emotion-fuelled moments before a breathtaking mountain backdrop.