Thorley Wash or Thorley Flood Pound is a 17.3 hectare biological Site of Special Scientific Interest in Thorley, south of Bishop's Stortford in Hertfordshire. It was formerly a flood pound for the Stort Navigation, which was decommissioned in 2004 and converted to a more natural state. It was purchased by the Herts and Middlesex Wildlife Trust from the Environment Agency in 2011.
Thorley Wash is more than 17.29 hectares.
It's 17.3 hectares which is indeed more than 17.29 hectares. It's difficult because 17.3 is very close to 17.29 so this seemed to confuse the system.