Children at the hospitals were surprised when over 25 of the region's first team players walked through the wards to meet fans, sign autographs and chat with excited youngsters and their families.
Blues and Wales ace Cory Allen said: "It was great to be able to put some smiles of the faces of the children. Something as simple as giving an hour of our day can make such a difference at this time of year.
Richard Holland, Chief Executive at Blues, added: "Our annual visits to local hospitals in Cardiff are part of our ongoing community work and something we are proud of.
"The players really enjoy trying to boost the spirits of young patients and their families during what is an extremely difficult time of year to be in hospital."
To watch the video of the player's Christmas visit to hospital to meet the children, families and staff click HERE