Île de France to Dieppe via the autoroute followed by Section 5 of the French Transeurotrail. Do not follow the return route from Dieppe if you don’t know what the TET is. It’s recommended only for Trail/ADV/Enduro/Dirt bikes only. It’s not the full section 5 of the TET, it’s only around 60kms of the full 200kms. Followed by a quick return via the autoroute to Ile de France.