Outdoors series. May the friendly park keeper and her friends welcome enthusiastic young explorers to their park for a day of fun. It is May's first day in Big City Park: she is the new park keeper. She meets Ruairi, Billy and Dara who will become her close friends and spends time exploring with the children and getting to know her way around the park. They work together to make a model bird and learn about what kinds of birds live in Big City Park. Ruairi makes some treats for everyone and they all have a fun day.