A trend in Cycling-World: achieve the same altitude as the highest mountain in the world: the MOUNT EVEREST. Which means: within one day, only at one and the same climb going higher than 8.848m in total. No help allowed, need to go up and down on the same route.
In July 2020 this challenge was accepted and successfully completed. On a total distance of 241km and with climbing the same mountain 30-times in a row, while burning up to 8.000 calories on this challenge, the collection of almost 9.000 meters of altitude was achieved. And: never again...