May the friendly park keeper and her friends welcome enthusiastic young explorers to their park for a day of fun. May and Ruairi are busily painting the band stand, as there is going to be a concert in the park. Billy is playing tricks on them by making funny noises with a balloon. May discovers that it is Ruairi Day and she heads off into the park with Billy, Dara and the children to find something nice to give Ruairi. Billy is worried that they can't find anything special enough to give him. Dara uses her laptop to find out her city friends know it's more important to have fun and enjoy yourself than worrying about what to take back. They all have fun in the park and go back to see Ruairi at the storycircle, where he has prepared lovely treats for everyone and recites one of his famous rhymes.