Have you ever been through a lock on a river?
They are amazing and clever inventions. On my Uniworld Enchanting Danube river cruise we went though almost 20 of them. In this video I take you on one of them with a sped-up trip as the ship is lowered almost 50 feet.
Take a look and let me know if you agree they are quite something!
To see and read more about my trip on the River Beatrice on the Danube visit: tipsfortravellers.com/uniworld