Maryland's largest certified amusement park, Six Flags offers both a dry amusement park and a water park. It makes a great out-of-the-city thing to do with your kids and a perfect day trip. Located about 40-50 minutes south of Baltimore in Prince George's County, Six Flags is a treat for the whole family. The park also offers live entertainment during the summer months and is very popular amongst local teens in the latter part of the day. The best time to arrive in order to avoid long lines and get the best parking is right as the park opens.