This is a great page where you can map anything from walking routes to flower sites, pigeon flight paths or even wildlife in a pond.
This image can be seen live at Arne Parish Council. The only content they have on the main page is the heading "Mapped Routes & Places".
Actual routes are created under Edit Items (red ring) in the example opposite. You can make many different maps or routes under different headings if you follow instructions in More Routes below.