You will need only one nautical chart to cover this itinerary -the Imray Tetra G14.  The best Pilot for the area is Rod Heikell's the "Greek Waters Pilot". You may view more info -and buy them online if you wish, from the links provided below..
	Imray Chart G14: Saronic & Argolic Gulfs Buy Now		Rod Heikell's guides are seen as the definitive guides to sailing (cruising) in Greek waters...