If you have plans to go to Amalfi Coast or Positano, then I would make sure to take a boat ride to Capri. There are 30-minute boat rides from Positano to Capri that you can arrange near the ferry dock for day trips. I took a trip in the early morning to avoid the crowds that tend to be heavy at noon. Since I only had the day, I arranged an abbreviated tour with a local tour guide, who took me to all the hot spots and helped us get to the front of the lines at each of the sites through her connections with the locals.