Whether it be a big hill, a small hill, or even a treadmill - the Jack and Jill charity wants people to get active and help sick children get the care they need.
The 'Up the Hill' initiative runs through the months of September and October with the goal of raising €200,000.
The money is going towards providing 12,500 hours of home nursing care for children who suffer severe development delay as a result of brain damage.
Those taking part are asked to donate €16 and can sign up at www.jackandjill.ie.
The launch comes as airline Ryanair separately donated a €10,000 cheque to the charity's founder and CEO, Jonathan Irwin.
The money was generated through Ryanair scratch cards which are sold during flights.