Riding in Europe ...

I fancy going over to Europe for a couple of days just to have a ride around with a bit of scenery for my first ride abroad.

Does anyone have any suggestions of where is friendly to ride and a good biker B&B or hotel along the way?

Would also be interested in your opinions on ferry vs. eurtunnel for cost/comfort (not that I like long dark tunnels.... nor ships that make me go green either but I guess one of them is going to be necessary!)