i’m guessing 4 hour flight from Philly. amazing food at michelin-stared restaurants for cheap. and very cool european-style architecture / sightseeing on this side of the atlantic.
That might be the most pernicious earworm of all time.
I think American has direct flights and there are a number of very nice resorts. Beautiful beaches and some good golf courses if you are into that.
My two suggestions:
1. Grand Cayman -- Beautiful, safe island. Good if she likes all things islandy.
2. Hawks' Cay (Florida Keys) -- Very nice resort. 2 hour drive from Miami airport, which gives you lots of flight options. The resort has everything you would need (although Florida Keys beaches are not big, and this one is not either). You can drive down to Key West one day as well...about an hour of gorgeous driving.
It was a bucket list item for my wife and I. This February will be our 13th year as we feel in love with the relaxed pace and old Florida tendencies. We find it's more convenient to fly into Fort Lauderdale as the car rentals in Miami are off premise and manned by incompetent people. The agencies are also in a crappy neighborhood. They'll need to make sure they sign up for a SunPass at the rental agency.
https://gracebayresorts.com/gracebayclub/
It can get relatively cold in the Bahamas and Turks that time of year.
Direct flights, about 3hrs from the NYC area, and some of the best beaches in the world. My favorite spot in the Caribbean.
Does it have scenic natural sites to visit? Historical sites? Indigenous culture? Performing and fine arts scene? What is the cuisine like, a lot of seafood? Might you consider Riviera Maya or Puerto Vallarta?
I have certainly never heard anyone claim Puerto Vallarta is the apex of historical tourism, natural beauty, performing arts, and fine cuisine. And what counts as "indigenous" there?
Last year we went the other way and went north (Kennebunkport) in January. We loved it.
My wife and I went in late July after a New Hampshire wedding and had a great time. Made it all the way up to Acadia National Park, but I can't imagine going in the dead of winter.
Some of the stuff is closed.
Although she's Norwegian, she hates the cold.