WATCH: Incredible sights and sounds of more than 300 motorbikes setting off on charity run around Donegal

Between 300 and 400 bikers from every corner of Ireland gathered in Donegal for the annual Sandra's Run in aid of Temple Street Children's Hospital.

For the first time in what feels like months, the clouds cleared and the sun shone from a clear blue sky, showing beautiful Donegal in all its glory. There was certainly a celebratory atmosphere as the hundreds of bikers set off from Killybegs shortly before noon on Saturday. 

The bikes were preceded by a lead car from which a reminder to 'Put your money in the buckets' emanated cheerfully at regular intervals.

The annual event is held in memory of Killybegs girl Sandra Boyle and receives huge support from the biker community as well as in towns and villages across Donegal. Sandra died shortly before her 18th birthday in 1991 following a three-year battle with leukemia. Her generous spirit lives on through all those who take part in this event, help with bucket collections, make donations or support Sandra's Run in any way.

Many of the participating bikes have teddies strapped on, and there are many more soft toys lining the route. These represent sick children treated at Temple Street, some of whom are no longer with us, others who are still receiving treatment, and many more who are living their best lives because of the care they received.

Anyone who wishes to donate, or to see the full route plan can do so by clicking here