I went to Rose Hall when I was 12. For the most part, I was extremely bored (I hate museums) until they mentioned the legend about the White Witch of Rose Hall. I ended up buying a book about it.
Admission is a lot less if you’re Jamaican. My mother, a Jamaican ex-pat, did all the talking as she paid for our admission, so we got in for the local price.
The cinema is great; you can go see non-mainstream films without trekking to Manhattan.