A reliable harbour-front cafe with outdoor seating looking across to Fort Michelangelo — convenient if you have a couple of hours to fill before a ferry. Espresso is good and properly priced (€1.10 at the bar; €2-3 at the table); cornetti and small panini available all day. The terrace is in the sun until late afternoon.
Touristy and not particularly distinguished, but the location is the point. Open from early morning till late.