Hello Karly
Welcome to this fantastic world of holidays I have done 9.
At 28 you will be in the younger age range, but please do not let that out you off, these holidays are really good fun, well organised and you will so much in a very safe way.
The USA tours I have been on have been
Boston, New England and New York
Eastcoast liner
Memphis and Nashvile
Florida
these tours are full on and can be early starts but so worth doing.
if I can help with anything just ask.
Cindy