Hire a scooter
Hire a boat for the day
Hike up to the Mount Epomeo view site
Visit one of the many beaches
Snorkeling
Spend a day at a Thermal Park
Visit the healing waters of Nitrodi (read more)
Visit the Hot Springs (Sorgeto)
Visit the Castle, Castello Aragonese
Take a day trip to one of the other islands: Capri, Ventotene-Ponza
Take a day trip to Positano, Sorrento or Pompeii