We are traveling to Williamsburg this weekend from Charleston, SC. The trip will be about 6 hours and lots of interstate travel. With 3 teenagers in the back seat, things could go bad quickly. I want to break up the monotony a bit and I notice that we can get off of the interstate and take a ferry into Jamestown rather than coming around on 64. The ferry site says that it is free and runs every 30 minutes and lands in Jamestown. We have never done anything like this before and it sounds like a fun distraction. Any advice for how this works, if it is dependable, safe, ect... would be greatly appreciated.