linux-user
Thank you for looking into this.

Unless someone comes up with a better idea I would connect the ferry routes to [this node](https://www.openstreetmap.org/node/1627322409). Than at least [usual routes like this](https://graphhopper.com/maps/?point=56.412394%2C-5.472114&point=56.472021%2C-5.709028&elevation=true&profile=car&use_miles=false&selected_detail=Elevation&layer=Omniscale) would work as expected.

Additionally [this way](https://www.openstreetmap.org/way/149784108) should IMHO not be a [driveway](https://wiki.openstreetmap.org/wiki/Tag:service%3Ddriveway)  