Dressed casually in a stylish sweatshirt pinned with an "It's My Birthday" button and sporting a high-ponytail, the mother of three appeared exhausted from all the fun she was having and was spotted taking a break to let her daughter Seraphina revel in the rides, reported E!Online.
The 'Dallas Buyers Club' star was also joined by her sister who kept her company while Seraphina rode one of the rides
The fun and easygoing afternoon was probably just what Garner needed after her hectic last week promoting her new film 'Draft Day'.