Ahoy Edith!
Welcome to the Disney Parks Moms Panel! So happy to hear that you have booked a cruise on the Disney Cruise Line! You are going to have a fabulous time! To be honest, I am not familiar with the Cross Border Xpress. You may need to contact them directly to inquire where and how far they travel. Unfortunately, the only ground transfer available to book through Disney Cruise Line is the transfer between San Diego International Airport and the Port of San Diego. I did a search online and there seem to be some private shuttle bus companies that offer transportation from the border to the Port of San Diego, so you do have some options available. I hope this helps Edith!
Quick Tip: Be sure to pack your Pirate Gear! One of the best parties on the high seas is the Pirate Deck Party aboard the Disney Dream! My family and I have the most amazing pictures with Minnie Mouse in her pirate costume! You don't want to miss out!
Since you are sending us this question from Mexico, I wanted to also let you know that the
Disney Parks Moms Panel is now answering questions in Spanish! Please feel free to check us out and if you have any friends or family that would like help planning their Disney vacations in their native language, send them our way as well! Edith, it has been my pleasure assisting you! Thanks for sending your question to the Disney Parks Moms Panel!
Bon Voyage,
~Yael