Dam Sen Water Park
For a rollicking day out for kids of all ages, this park has a variety of slides and pools (one with a wave machine), a zipline, and a lazy river ride. Compared to water parks in more developed countries, Dam Sen is a little rough around the edges, but that doesn't prevent it from being an exhilarating day out. Children have to be taller than 4 feet 6 inches to go on the larger slides, but there's a range of medium slides for smaller kids and a toddler play area.
On weekdays there are usually no lines for the rides.
Lockers are available (15,000d) and you're given a small waterproof tube to hold your money, valuables, and the locker key. There are also several food kiosks within the park. It can take up to an hour to get here from District 1 when traffic is heavy, or about 40 minutes in light traffic.