This study started when, during a field project in Harwich by Architecture students, over 200 maps were obtained showing childrens' perceptions of their routes from home to school. Despite this uncontrolled beginning, an attempt has been made to follow up other similar work and add two things perhaps as yet little studied. Firstly, to follow development of mapping style and content by age, and secondly to relate the items shown by the children to the particular physical environment of Harwich.