We have 6 days to spend in Italy, early April. Originally I wanted to go to Puglia but think this will not be long enough. After exploring interesting places to visit (and we do love being on the coast) we thought perhaps flying into Rome and then going to Gaeta. If we spend 2 nights in Rome (never been there before) and then 4 nights in Gaeta with a car or go by train to Formia and hire a car there - would this be long enough and would this work??