Hello, I am pretty new to this site and I have really enjoyed being here. I have a question. We will be traveling the first week of April with 10 month old triplets and a 4 year old little girl. We will be taking bottles and baby food into the parks, is it okay to put other food and snacks in the cooler? I know they check bags at the park entrance, I just wanted to make sure they wouldn't have a problem with it. Thanks!