So we went towards the harbour thinking of a place to have lunch after all that walking and visiting museums and seeing things. It was too much to absorb.
Reaching the sea we realised there were little boats visiting the Bourtzi castle which is the landmark of Nafplio, a little fortress inside the sea that was a prison, a hotel and now an empty sightseeing destination but too beautiful to miss. As the boats don't go in winter I was very very happy to see them going at that time, probably because the sea was so calm and the day was sunny and bright!Or maybe just because we were there!
Go to this link for a virtual tour of Nafplio. Go to the little dot in the sea for Bourtzi.
This link for a virtual tour of Nafplio is a great link to see the whole of Nafplio and read about it and its sights.