Perhaps our RFF brethren from Canada, or some other American, but not U.S. locale can answer that. As the airline industry says, "some restrictions apply." We're forbidden from visiting the land of 1950s automobiles, bananas, Cuba Libre's and Guantanamo Bay. That is, unless we're declared an enemy combattant. Then we go to Gitmo, but not much anywhere else. And then there's the waterboarding. It gets very ugly.
Actually, I know of some U.S. persons who have gone to Cuba for vacation. They had a great time. Yes, it will be bright, and probably a bit hazy. I wouldn't know what to tell you photo-gear-wise. But definitely enjoy a good cigar for me!