@lesheim To the extent my post can be read as advising you not to go or giving you advice you did not ask for, I apologize. As with most things in the CR, the responses tend to veer far from the posts.
That said, I was once in my 20s also so no judgment, but if you did not know there was gambling in the Bahamas, you should (at least) google before you go to decide if you actually want to go.
The problem with the Bahamas is that the nice areas are not a bargain, and the ones that are, you have to carefully investigate their safety etc… Leaving halacha out of it, there are some spots anyone from the US (much less a female) would be wise not to go. This is true of many places, though you are generally (though of course, not always) safer in the US.
Anyway, as someone who lives 200 miles from Nassau, and does go there from time to time when I want a short vacation close by, I am not telling you not to go, but investigate before you do. If I had information on the bargain places I would tell you, but I really do not.