Exploring Hemel Hempstead: A Guide to Safe and Enjoyable Visits: A Complete Guide Tucked away in the heart of Hertfordshire, Hemel Hempstead is a lively town filled with rich history, lush green spaces, and exciting modern attractions. From the ancient remnants of Berkhamsted Castle to the interactive experiences at Whipsnade Zoo, there’s so much to explore. Of course, like any town, it has its less appealing areas. This guide is here to help you navigate Hemel Hempstead with