I have done the YMCA in Southgate and used their pool. It was fine especially in Winter. I have done Downriver Gymnastics they have a private room and tons of stuff to climb on for girls and boys. Oh also in Taylor there is a Zap Zone Lazer tag...honestly great fun for all ages we did it for my BD one year best BD ever....even had my mother playing! You could make arrangements to get in at a time when there are not teens. I have also used Pump it Up germie or not it is organized and easy to use. Also there is that skating rink on Allen and Van Born we went to a party there recently and it was fun.