Dam Sen Park, the water park is a great time in Ho Chi Minh City. The main area has some food, games, and shows. The water park, however, is where its at. There is the standard issue lazy river tube ride, which is pretty much what you would expect. Absolutely relax. Another easy going attraction is the wave pool that makes an appearance several times daily. There is the zip line which carries you about 30 meters or so from the start point to the terminus in a deep pool. The workers don't care, so you can do backflips or whatever at the end of the line. Regardless, its pretty fun.