Walmington-On-Sea was supposed to be a small town on the Sussex coast. However, most of the filming for the series took place in and around Thetford, Norfolk.
Among the other locations used for various episodes were:
Great Yarmouth, Norfolk
Sherringham, Norfolk
Drinkstone Mill, Suffolk
Kings Lynn, Norfolk
Lynford Hall, Lynford, Norfolk
Brandon, Norfolk
Stanford Battle Area, Norfolk