Croagh Patrick is the third highest mountain in County Mayo, Ireland. It is a popular pilgrimage site for Catholics, who climb the mountain on the last Sunday in July. The mountain is 2,510 feet high and is said to be the site where Saint Patrick fasted for 40 days in 441 AD.

The mountain is also known as the Reek, and is a popular spot for hikers and climbers. with views at the top (on a clear day) over clew bay.