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Jungfrau World Events GmbH, Obere Bönigstrasse 100, 3800 Matten bei Interlaken, Switzerland
Interlaken is a RunThrough Trails mountain trail event held on 8 August 2026 that offers three distinct races across alpine ridgelines and lakeside terrain. The event features a 50K, a 27K and an Up & Down race and the courses pass panoramic viewpoints with sights of the Eiger, Mönch and Jungfrau mountains. The terrain is described by the organiser as technical singletrack with some faster descending sections and challenging vertical climbs, giving a varied and scenic trail experience for a range of abilities.
Official resources are provided on the event site, including GPX downloads for each course, a mandatory kit PDF, a dedicated FAQ page and the event regulations. Ticketing/entry is shown via the third‑party booking link indicated on the organiser page, and entrants are directed to follow the organiser's entry flow. The event page highlights route notes (Aare River crossings, Harderkulm viewpoints and Beatenberg valley sections) and clearly signposts the downloadable route files and kit requirements for competitors.
