Since 1929, Jarlath’s  had a heated indoor swimming pool. A unique feature which was a novelty to students and visitors alike, the pool is in the heart of the old college, and throughout the past provided a great distraction and area for exercise for boarding school students. While not used  since the cessation of the boarding school, it has still been preserved in the event it would be used again.

The St. Jarlath’s Swimming Team excelled at the Connacht Schools’ Swimming Finals in Longford in 2013.