World Youth Day was started by St John Paul II to gather young people from around the world in faith fellowship and fun.
It was through WYD 2005 in Cologne that JaCy was formed. Since then groups have attended Sydney in 2008, Madrid in 2011 and Krakow in 2016. These events are aimed mainly at ages 16-30+ though we do take some young people as young as 14-16 years each time.
See worldyouthday.com for more details.