The “Brutal”, voted the “World’s Toughest Triathlon” was held in Llanberis, north Wales, in September.
Danny had to complete a 4.8 mile swim in Lake Padarn, followed by a 231.9 mile cycle finishing with a 51.1 mile run up and down Wales’ highest mountain, Snowdon.
He completed the gruelling race in a time of 37 hours 34 minutes.
By taking part, Danny raised funds for the Children’s Cancer Unit Charity. This charity supports the work of the medical team and staff at the Children’s Cancer Unit at the Royal Belfast Hospital for Sick Children.