First time traveller: Mom traveling with 2 kids (ages 7 & 4) on Cali Zephyr and Capitol Limited just after July 4th. What is it like traveling that time in the summer? Will the train be packed? I'm traveling Mon-Wed. I'm not thrilled that we will have to split up, but I don't think we have much choice. I am assuming our seats will be in the same row at least? Any advice, tips, or ideas on things to bring on our journey?