Roatán Island 
in $240s-$480s RT
JakeJFC
Roatán's proximity to the Mesoamerican Reef System makes it a total diver's paradise. The only downside is you might never want to return to the surface!
You'll meet tons of new undersea friends down there too, from rays to sea turtles to moray eels. Take a baited tour to come face-to-face with sharks and barracudas, and night dives bring out giant crabs, spiny lobsters, and even octopuses (octopi?).
Sadly, no one can stay under the water forever, so you'll have to surface eventually. But some primo Honduran chocolate certainly takes the sting out :-)
Jack's take
These flights are so rare, it's almost unbelievable they're at this price and with as much good availability. Won't last long!
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