Plan Your Trip Schools FAQs Directions Our address is: The Royal Gunpowder Mills, Beaulieu Drive, Waltham Abbey, Essex, EN9 1JY To find us, you can also use what3words.com: camera.acute.supper The turning point for Beaulieu Drive is located on Station Road (the A121) across from McDonalds. The entrance for the Royal Gunpowder Mills is located at the top north end of Beaulieu Drive. For school visits, please use the entrance gate on the right hand side (not the gate straight ahead). Please press the gate intercom upon arrival. A member of the Learning and Outreach Team will meet your group upon arrival. See our directions page for a map.