After we checked out of Schönburg Castle, we headed up stream and took one of the many small ferries to get to the other side of the river. Here, we are waiting in line to get on the ferry which could hold about a dozen cars. River traffic is heavy, so the pilot of the ferry has to know what he is doing to avoid a collision. While we were crossing, we encountered several large boats / barges. Just ahead is one of many river cruise boats that go up and down the Rhine.