La ronde de la Casta is an evening running and walking event held in Bizanos, located in the Pyrénées-Atlantiques department of southwest France. It is planned for September, with the specific date yet to be finalized. The event provides three options: an 8 km walk, a 12 km run, and an 8 km run.
The walk begins at 18:45, with the 12 km race commencing at 19:00 and the 8 km race at 19:15. The event is categorized for both walking and running, accommodating participants seeking a timed race and those preferring a less competitive, shorter walk.