A test of the magnitude of Juan Muguerza is not understood without the contribution of the volunteers who collaborate so that year after year is a success. That's why, to live the test from within, you do not have to run, since you can also participate by volunteering.
From the organization we work with the necessary volunteers in each of the key points where pass the race.
If you want to be part of the cross, you can write to firstname.lastname@example.org .
Thanks to everyone for every year to help us create this great athletic event.