I just did this exact route myself, then carried on up to Stockholm.
I got the ferry to Dunkirk as Alan mentioned, was a very easy ride through the town to the Belgian border. I used OSmand mainly for routing. It proved pretty faultless over the trip, only a couple of dodgy bits and dead ends.
I was advised to go inland as a lot is reclaimed land above Amsterdam, I visited a friend in Rotterdam then headed to Deventer (a beautiful small city with an old centre) The ride through the De Hoge Veluwe national park was very nice indeed.
I just did this exact route myself, then carried on up to Stockholm.
I got the ferry to Dunkirk as Alan mentioned, was a very easy ride through the town to the Belgian border. I used OSmand mainly for routing. It proved pretty faultless over the trip, only a couple of dodgy bits and dead ends.
I was advised to go inland as a lot is reclaimed land above Amsterdam, I visited a friend in Rotterdam then headed to Deventer (a beautiful small city with an old centre) The ride through the De Hoge Veluwe national park was very nice indeed.