We sailed a Passport 40 from Marathon, Fla. straight through to Isla Mujeres (island next to Cancun) several years ago. It was a rough passage
once we passed Cuba, so be prepared for a possible big blow on the bow. It was rough enough that we needed to take down the jib
, which wasn't a furling
one. Very precarious undertaking in the dark.
If you are entering the Cancun area at night, be ready for what seems like millions of cruise
ships and all their confusing lights. Unfortunately, we had not timed our arrival well and we had to sail up and down, killing time. The owner did not know how to heave to his boat.
The markers to enter Isla were confusing.
My suggestion is to make this trip in total daylight and not part of a long passage like we did.