The large blue and grey riverboat,is loading passengers for the trip of a lifetime.When convenient,and without obstructing any canalboat traffic,the tourist boat will be manuovred into place,to power into the caisson,to be raised to the upper level,where it can then be powered into the upper canal,proceding through a 200metre long tunnel to a turning place away from the Wheel devices.And then back again.I didn't bother to find out the cost.