There are already nice beaches in Cuba - European pedophiles vacation in Cuba for that and child sex; so far this vacation wonderland hasn’t really changed anything. Cuba just keeps regular Cubans from enjoying the surf, because there’s a tendency for them to not come back to shore.
Cuban resorts:
http://www.bing.com/images/search?q=cuban+resorts&qpvt=cuban+resorts&FORM=IGRE
Not Club Gitmo
Up until recently, 2013 or so, Cuba wouldn’t even allow Cubans into the same hotels as foreigners use, now Cubans are allowed into some of them, though they are still subject to being watched and questioned at any point before, during and after their stay.