Add The Children’s Play Gallery to your list of summer activities. For just $80 (plus tax) you can get a family membership that is valid from June 1st to August 31st, 2017. The membership covers the children in your household. If you bring a guest along, they will get in for the discounted rate of $8 plus tax. Memberships are kept on file so grandparents or child care providers over age 16 can bring the kids in as well.