Heritage Open Days 2026

Heritage Open Days is England’s largest community-led festival of history and culture, bringing together thousands of volunteers and organisations across the country. Discover the wealth of exciting FREE activities and events taking place at various venues and spaces across Dacorum. It’s your chance to explore hidden places, uncover local stories, and try something new! **Please check disabled access and parking details with the venues holding the events** **Please note whilst events are free, some maybe subject to advanced booking**