This event happens in Fómeque, Colombia South America. It is in the Guinness Book of World Records as the largest gathering of G60 Patrols in one area anywhere in the world, multiple times they have set this record. I don't recall the exact number of Patrols there each year but I am recalling the last event they were over 400 Patrols in Fómeque for the event.
https://www.youtube.com/watch?v=2kpCDJPp5mg
Many more videos on youtube of this event if you search.
Cheers