Under normal circumstances the Port operates fully, the ferries still dock on a daily basis and it is an important transport hub for supplying the many Greek Islands that rely on goods from the mainland and transporting their own goods to the mainland as well as passengers heading for destinations all over the world, even the those Islands with International Airports like Crete have far fewer flights departing so many people travel to Athens to fly from there, so that means life is pretty normal in Pireaus, We stayed there in February and found all shops, cafés, bars and hotels open, HOWEVER, Greece like most of mainland is currently on lockdown so only essential businesses are open.

Book as far ahead as reasonably possible, or at least to the point you know your plans aren't going to change. Santorini is the most popular and books up the fastest, so I'd definitely book that island ASAP. Also, I don't know how long you plan to stay on the islands, but I'd recommend a day trip for Santorini. However, the island is bound to be extremely crowded, so it ultimately depends on how much time you want to spend there.

Am sorry. There are no place to keep your luggages at Pireus Port .

Hi we didn’t use metro as a short walk from port you can get a hop on hop of bus we paid €15 caarefull as different bus companies charge different price for same journeys. It was very easy and could get to most of sights.

טברנה סביב נמל פיראוס

Occorre salire, è possibile farlo ma conviene chiedere informazioni per percorrere la strada più breve.