More than 100 pilgrims from the Diocese of Grand Rapids are heading to Poland to attend World Youth Day.

The group took off at 7:30 a.m. Sunday, July 24.

They will be among 1 million registered pilgrims attending the 31st annual event. World Youth Day is an international event that brings Catholics together from all across the world in a celebration of faith.

It runs from July 26-31, with the last two days including a vigil and mass with Pope Francis.