Just did it 2 years ago at same time of year. Panama
to Providencia to Guanaja to Roatan to Belize
and linger there. Then to Isla Mujeres then to Key West
. You can make other stops along the way. Get Pavlides and Rauscher guides. There is an old Nigel Calder guide kicking around and Curtis, who goes by Belizesailor here, has his own very helpful guides. We were stuck in Providencia for a month waiting for a window of lighter winds, but its a great place to be. All in all, a cracking sail all the way up with favorable current
most of the way.