The aim is to provide an educational and entertaining day for children. The emphasis is on botanical and environmental learning activities that stimulate an interest in plants, the environment and the Gardens.

Activities have included plant propagation, craft activities, a biodiversity display, garden tours, a botanical Treasure Hunt, and an art and photography exhibition. The activities are organised by Gardens volunteers, with contributions from other organisations with an interest in environmental issues.

The Children's Discovery Day has proved a very successful way of introducing children and their families to the resources and facilities available at the Gardens.