i went on that trip.to cabo.mazatlan and puerto vallarta.girl dont worry about getting on board.they are very easy going and i felt like they didint care then.but when you come back thats when you go thru customs.i took a half ounce of some awesome buds.it was so cool to smoke in the jacuzzis they have at the back of the ship.i was alone at night in the middle of the ocean and smoking a blunt under a full moon.take whatever just make sure not to bring nothing back.in mazatlan i wanted to smoke some local bud and asked a local for a twenty dollar bag.he brought out like more than a pound.i was laughing cuz thats a lot.i just took a lil and left.i suggest signing up for the village tour in mazatlan.you wont regret it.good luck and take pictures.make sure you eat a lobster for me in cabo