I agree the Tulum ruins are awesome and more than likely any ship you take would be fine. There are also some ruins that have only been recently discovered in the Costa Maya MX area. Also look up the various ports you may be interested in as to what is available in the port that would interest you. While Donna gave some excellent info on ships and itens I was even more confused and overwhelmed with all that. You really need to get with a TA and discuss what you have explained here and see if you can find a match. Or more like see what, not if, match you find. There is certainly something for everyone!