If you are one of those guys that gets ~8MPG consider bringing gas. Murf and I did a lot of driving and Murf put 24.9 gals in his 80 at the first available gas station.
Also if you guys want a fire bring wood. Even though some may think its gay Duraflame or the likes are great for a beach fire with instant lite, no maintenance, no smell, and a ~4 hour burn time.
Sure everybody knows this but since some didn't know about having Mexican insurance just maybe some don't know a passport is required to travel into Mexico. Been a long time since I've been south of the border back then one wasn't required. Getting one is on my to do list that never seems to get done.
Mexican insurance is only required if you want to avoid jail. Even if it is clearly not your fault you go to jail. With that said I meet people all the time that dont get it..