If you drive via Calais (Chunnel or the ferries) we normally average 3.5 hours Calais-Amersfoort at 120 km/h. It's all motorway. You can shorten it by about half an hour if you cane it, but you are at risk of getting pulled in Belgium.

If you come over on the early boat from Harwich (the overnight) you are about one hour away from Amersfoort. This is again, all motorway. There is an early evening boat back to Harwich (I think at about 7:30 PM) so you would need to be leaving Amersfoort around 5 PM.

If anyone wants motorway directions from Calais or Rotterdam, please ask.

One of the few remaining Mk1 owners... #00015