Well I'm home now.....Mexico was FABULOUS. 27 degrees celsius every day, sometimes a bit of cloud, and very seldom a welcome shower for 20 minutes or so. I'd go again.
BUT: about my knitting needles. I got them over there ok, but on my return home trip, they were confiscated at the Mexican airport. They were 24 inch circs - those expensive ss ones with blunt tips. They also had no understanding of how they might mail them back to me.
Lesson learned. I will never take knitting on a plane again.