The Vienna O Challenge launched in 2019, with the idea to create an international event open for everyone, in challenging areas, and fun to be part of. Thanks to everyone who has participated in the first four editions; 2023 already more than 300 participants from 30 countries. See you at the 5-years anniversary event 2024!
Event Director
Do you want to be part of our team & create an international sport event? Join the team of volunteers :)