Traveling the three rivers, many sights are seen. The rivers have been dammed (they have dams on them) and as a consequence the rivers have been tamed. Instead of rapids and waterfalls, there are many different water levels. Nowadays, to navigate these waters, a ship has to go thru an extensive lock system. I'm not sure of the exact number of locks that we went thru but the number 52 sticks in my brain. The locks are extremely narrow, and when we are in the locks, there are only a few inches on each side of the ship. For safety reasons, we were told that we should not touch the sides of the locks.
