For a landlubber, the working of the locks can be intimidating. That is, until you see how easy it is! The water does all the work. All you are doing is draining the lock or filling it. You should plan on having two people to work the locks and one person to maneuver the boat into and out of the lock. A fourth would be a plus to help keep the boat in position in the lock and to hold the boat on the shore when dropping off and picking up the two lock men (or women). Yes, I saw a lot of ladies working the locks.
There is some etiquette involved when traversing the locks. In order to save water, if you are coming to a lock that has the water at your level, then you should go into it, even if there is a boat at the other level waiting. Likewise, if the water is not at your level, then see if a boat is ready to go in at that level.
How do they work? You come to the lock and drop off your lock crew. They see what the level is in the lock. If it is at your level and you are next in line, they check to make sure all of the floodgates are closed and then push the gates open. The gates have long arms on them that you push against to swing the gates open.
You then leave the shore and maneuver your boat into the lock. It's a tight squeeze with only a few inches to spare on either side, but you will soon learn to go very slowly and line up the boat without a problem.
Once inside, your crew will swing the gates closed. They will go to the opposite end of the lock and slowly open the floodgates or "paddles" to let the water in or out, depending on whether you are going upstream or down. While the water is rushing around in the lock, your boat will be pushed forward and back. It is easiest to just use your engine to stay in position. Look at the side of the lock and keep the boat oriented with a spot that you pick. Alternately, you can throw a line over one of the bollards on either side of the lock and hold the boat in position. Do NOT tie the line off!!! Your boat, depending on the lock, could be going up or down by as much as 15 feet.
Once the level in the lock has come to the same height as outside, the doors are pushed open and the floodgates are cranked back closed. You can then motor out and tie up outside to wait for your crew to close the gates and reboard. If there is another boat waiting to go in, then leave the gates open.
Many times, you will have to wait for another boat to go through the locks, and this is a great time to socialize and help each other out. You meet the nicest people when everyone is in the same "boat," so to speak.
On the one-week cruise we took, we went through 66 locks, which sounds like a lot, but it was fun. The old lock houses and the atmosphere around them is worth seeing. Many times there are pubs or villages at the locks that are waiting to be explored.