Event Information

 Interlaken, Switzerland
15 June 2025 to 21 June 2025

Interlaken 2025

The Fox Way is a stunning circular route around the Guildford countryside Plotted by Richard Fox - and making use of the local railways - it can be done in stages or in its entirety. 20K, 41K and 63K options are available. It can also be done as a relay 3 legs that are approximately 21K each.

42K

ITRA Points
Itra Images
Mountain Level
  8
Finisher Level
  280
National League

Course details

 Race Date: 2025/06/15
 Start Time: 06:00:00
 Participation: Solo
 Distance: 42.98
 Elevation Gain: +3009
 Elevation Loss: -3008
 Time Limit: 12:0:0
 Number of Aid Stations: 4
 Number of Participants: 600
 
Championship: RunThrough Trails Global Series
 

About the Race

A High-Alpine Marathon Through the Heart of the Bernese Oberland The Interlaken 42K is a spectacular mountain marathon that blends runnable lakeside trails with challenging alpine climbs and ridge-line panoramas. Starting in the iconic adventure town of Interlaken, this route takes runners on a full alpine journey crossing forests, balcony paths, and high mountain passes before dropping back down toward the valley.