Gráinne Kelliher is CEO of Airfield Estate in Dundrum, Co Dublin: a 38-acre working farm with ornamental and food gardens, a restaurant and an education centre left in trust to the people of Ireland in 1974 by the trail-blazing Overend sisters.

It welcomes 300,000 visitors every year to explore the grounds, collect eggs from the hens, watch the Jersey cows being milked, play in Naturescape, and learn about the life and times of the Overend Family, who lived on the estate from the late 1800s to the late 1900s.