I will be travelling to Split for about 3-4 days in March. Any suggestions on things I MUST check out (lesser known attractions, restaurants, music, etc.)? I am already fairly familiar with some of the main attractions, such as the palace and museums, but would greatly appreciate any other ideas people have.

Also, would it be worth it to go to anywhere else outside of Split, or is 3 or 4 days in Split alone pushing it?

Thanks in advance for your comments!!