How To Travel With Frozen Breast Milk

I’m a new mom and I’m looking for advice on how to travel with frozen breast milk. I’m going on a trip and I want to make sure that my breast milk stays frozen and safe for my baby. I’m wondering what the best way to do this is. I’m looking for tips on how to keep the milk frozen during the trip, what kind of container to use, and any other advice that could be useful. I’m also interested in hearing about any experiences other moms have had with traveling with frozen breast milk. Any advice would be greatly appreciated.