Walk to the Lion and Evanglismos Church
This walk takes you out of the old town, and is really interesting and worth doing. The area has a different feel to the old town - more of a lived in, working area and less touristy. It's fun to explore round here.
The main road through this area is 25 Martiou. If you are starting from the bus station in Nafplio, looking away from the old town, this is the road that runs along the foot of the fort.
On market days the market is on it. If you look up, you'll see Evangelismos church, which sits prominently on top of the hill.
Use the church as a land mark, and basically head towards this. 25 Martiou is also the road to the Palimidi and Karathouna beach, which are sign posted.
You'll go through the interesting neighbourhood of Pronia, which is a mix of old and new houses, with little lanes and pedestrian streets winding up the hill to the church. These streets have a bit of an island feel to them. 25 Martiou has shops, cafes and tavernas on it. The tavernas are lively and popular, and worth coming back to visit in the evening.
If you turn off to the right you'll discover a small square, with a bell tower and church, a bakers, another little taverna, and a shop which appears to specialise in religious icons and coffee.
To see the lion, continue up 25 Martiou until quite near the top, where the road divides.
Take the road that goes round to the left, sign-posted to the Palimidi fort. Walk for 5 minutes or so along this road, looking out for the lion on your right, shortly before a big cemetery.
Re-trace your steps back to 25 Martiou. You'll be able to see the church, and you don't need exact directions, it's easy to find. And a bit of wandering in the small back streets is fun.
There is a steep and quite grand staircase that takes you up to the church. In the courtyard of the church there is a nice old water well, and a small museum.
From the terrace outside there are, surprise surprise, more great views looking back over Nafplio old and new town, the mountains and the sea.