The Iron Bridge that spans the River Lark in the school grounds at Culford is a Grade I listed structure, see other listed buildings here
http://www.britishlistedbuildings.co.uk/england/suffolk/culford
All roads lead to Culford
Culford as viewed from Google Earth
http://maps.google.co.uk/maps?q=felixstowe&hl=en&ll=52.297352,0.696688&spn=0.011627,0.0421&gl=uk&t=h&z=15&vpsrc=6