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The start line is positioned at historical Knebworth House for a dramatic effect, and the half marathon route explores the beautiful gardens of Knebworth Park before leading runners out to the surrounding countrside. The Hertfordshire Half marathon is a Road closed event which gives runners a rare opportunity to have the roads for themselves, this is unprecedented in this neighbourhood.  So get out there and enjoy it.

Knebworth House is protected as a grade 2 listed property and is surrounded by it’s stunning parkland and gardens. Runners, friends and their families will enjoy a great day out and can take advantage of the properties adventure playground and children’s attractions.