We chose this cruise purely for the itinerary. The 7 night 3 Continents tour leaving from Athens did not disappoint in any way. We'll certainly use Celestyal again.
Flying into Athens on the day of the cruise departure was a risk, but we'd seen Athens a few times before, and weren't keen to stay over. A 1 pm arrival was delayed by half an hour but we still made the 2.09 train direct to Pireaus and we were queuing to board the ship by 3.30.
The embarkation took about an hour overall. Quite busy.
We go inside - we can afford more cruises that way, and to be honest this cruise was so active we hardly used the cabin except to sleep.
We were only in Athens for a few hours after leaving the ship and waiting for a 6pm flight home. Easy journey to the centre from Pireus on the metro, and left our bags at a bag b'n'b near Monistiriki station. Toured the Agora which is something we'd missed on previous trips to Athens. Paid 10 euro each to rejoin the metro for the airport journey.
Easy day for us after so much time on busses so just used the shuttle into town and wandered about. Really nice day out.