To view the full map and to access other features/options (e.g. printing) click on the “View full route” link at the top left of the embedded map.
By default the route is shown using Google maps which does not show all cycle paths, so if it looks like the route is in the middle of nowhere, select “OSM” from the maps list in the top right (blue dashed lines are cycle paths).
When viewing the maps, you’ll see icons. Click on an icon to see more detailed information.