Toby and Sarah's journeys are shown by the red dots, 
Peter and Romy's journeys by the purple dots.

If this map is too small Click Here and a highly zoomable jpg version of the map will open in your web browser.  This is a 5.5MB file.
You are welcome to save the file if you wish.

If you are interested in the canals and would like to learn a bit more about Oliver go and have a look at Oliver's own Web Site.