Trip

Hi yall! I am planning a trip to Chattanooga Monday. My bf is originally from Chattanooga and grew up there so i’m taking him as a surprise. We are only 2.5-3 hrs away. What are some good things to do there? We did the aquarium last year. I was thinking something like Ruby Falls possibly? Maybe Rock City? For added context we are both 21+ but not big party people haha. Something we can experience. Thank you!