Welcome to England’s largest festival of history and culture! Every September thousands of volunteers across England organise events to celebrate our fantastic history and culture. It’s your chance to see hidden places and try out new experiences – all of which are FREE to explore. Heritage Open Day: Discovering Hidden Nature in March Cambridgeshire. Throughout Heritage Open Days The March Society will be showing material of various locations around the town and putting activities online to discover hidden nature around March. These will all be available on the website www.themarchsociety.org.uk