Hello! Tourist here!

Hello everyone! So I'm going to be visiting a friend in Jacksonville for the first half of my spring break. My friend just recently moved to Jacksonville so she doesn't know of any nightlife scenes in the area. I was curious to know if you could help me out with some options for young but over 21 crowd with a good club/stand up bar scene? Also any things I could be doing during the day, how's the Spring Break scene there? Thank you!