Good morning friends
MariaH, Tolon is NE of Nafplion & Astros, not South.
Some little informations regarding area of Astros
1) worth visiting is the long beach of Karathonas behind Nafplion
2) Near Astros there is an area called "Ellinikon" where you can see one of the oldest Pyramids in Greece mentioned by Pafsanias - did you know there were Pyramids in Greece?, well actually there are 3 !
3) Swimming at Astros beach remain at the sandy part of beach which is long enough I believe. never go to the north rocky part as there is a dangerous maelstorm at sea (hope I use the right word)
4) while at Nafplion take a long walk round "arvanitia", where port ends. It is amazing! end not forget, take your girlfriend or wife with you as it is very romantic......leave mother in law at the hotel........or better give her instructions how to take a swim at Astros maelstorm.
As Nafplion & Chania are my favourite towns I' ll be here for any questions
Spyros
P.S. Graham, which place is the flag of your avatar?