#19SWITZERLAND for Léman hope 2027

Specific to this event: ‍

ULTIMATE  - non-stop ultra marathon add-on option only in Switzerland (25km double crossing CH-FR-CH)

Additional option of ULTRA[Nomad] available - sort your own accommodation out if you want

Our only fresh water venue

Public transport focus - we’ll be using Swiss trains and the classic CGN lake ferries to move you around where possible

Prep-Camp: Tom Jenkinson is one of our experienced UltraSwim 33.3 Affiliate coaches and will be leading a pre-camp in Switzerland ahead of our 2027 event. Tom will bring his coaching expertise, energy and understanding of the 33.3 format to help swimmers prepare both physically and mentally for the challenge ahead. The pre-camp will provide an opportunity to train together, refine open-water skills, build confidence and get to know fellow swimmers, while giving participants the ideal preparation and insight before taking on the full 33.3 challenge. He completed #14Switzerland in 2026 and used to live in the area - he's your perfect expert for #19Switzerland!

Jesper Holmberg is a Swedish open-waterswimmer who knows what it takes toperform when the challenge gets tough.At #14SWITZERLAND event in 2026, Jesper took on the full 33.3 km across fourdays in the Skins category, taking thepodium with a combined time of 9:09:12. His consistency throughout the four dayswas a great example of the endurance,pace and resilience that the UltraSwim33.3 format demands. Having experienced the event from theswimmer's perspective, Jesper brings aunique understanding of what it takes toprepare for four days of open-waterswimming — both physically and mentally.‍