Under the scorching sun, Blues players were pushed to their limits during conditioning training.
A pleased Kirwan was impressed with the team's efforts.
Halfback Bryn Hall has fully recovered from a broken jaw this season and hopes his outstanding fitness will earn him a regular spot in the Blues side.
It was a gruelling training session today, and with Christmas fast approaching, Blues players were put through their paces.
To top off their efforts and to celebrate Sir John Kirwan 49th birthday he was presented with a banana cake to share with everyone.