We (couple in our 60's) are coming to Memphis by train from New Orleans after Jazz Fest. We'll stay in Memphis for May 6-7 and will do Beale St., Graceland, zoo, etc., but thereafter plan to rent a car and drive around -somewhere - for 2 more days, returning to Memphis on the 10th. We've never been to Tennessee. Any suggestions on direction to take, things to do/see in western Tennessee or MS? We like nature, hiking, BBQ, jazz, good food, history, scenic views. Anything to see/do on the Mississippi river? Thanks for any suggestions.