Captain Ibrahim/Abraham (spelling?) and crewmates Pablo and another gent (whose name slips my mind, I am sorry) were absolutely fantastic.  My sister and I arranged to have them take us on a day-long cruise to visit Isla Blanca (this island is generally quite private and we were basically the only one there!) to swim, sun and lunch, then a visit to Isla Mujers (which was more crowded, and then another spot for snorkeling.  The Captain and mates could not have been more helpful, accommodating, and careful, as well as being fun and engaging too!  I strongly recommend this specific crew and their 52-foot fly bridge to anyone.  Separately, a person named “Captain Jorge Cruz” who seemed to me to be the guy who oversees the logistics when arranging this excursion (but was not on the boat) was very helpful in answering my questions and dealing with some specific requests that I had for our rental so shout out to him too.  Cheers, Adam