It's "National Grandparents Day" this weekend (On Sunday to be exact) and instead of giving them your "obligatory" phone call or quick visit, take them on a day trip down to San Antonio.

According to KSAT, the San Antonio Zoo is offering free admission to grandparents in celebration of National Grandparents Day. Maw Maw and Paw Paw can get into the Zoo free on Saturday and Sunday with a paid child admission.

If you have an annual pass to the San Antonio Zoo, you can bring your grands in for free this weekend. You can claim your free tickets at any ticket window located near the front gate of the zoo.

What better time to get out of the house and enjoy some family fun!