A portion of Bally's Atlantic City is no longer open to visitors under the age of 21. The casino's indoor pool and fitness facility are now only open to adults who are at least 21 years old, the Atlantic City Boardwalk resort recently stated on its social media accounts. According to resort managers, the modification follows several customer complaints about disruptive kids and teenagers ruining their vacation. Officials from Bally's stated that due of noisy children, many visitors considered the resort's pool and fitness center to be unpleasant.