In its 33rd year, The Ring of Kerry Charity Cycle is bringing together people from all over Ireland and beyond.
This year 11,000 people have participated in the cycle with the aim of exceeding the €1.85 million raised last year.
Hundreds of volunteers marshal, operate food stops and provide medical and technical support.
The scale of the cycle is ever increasing, meaning that this year 23,000 sandwiches have been ordered, along with 10,000 plus litres of water, 35,000 bananas, and 30,000 slices of buttered brack.
Cathal Walshe, Ring of Kerry Charity Cycle PRO says people have travelled from all over the world to participate: