Hire cars are available locally from Heli Cars and Pop's Cars or you can hire at Athens International Airport with Avis, Hertz and others.
If you don't want to drive yourself you can always use Gioannis taxi service to collect you from the airport, organise day trips in Argolis or take you on an evening excursion to the Ancient Theatre of Epidavros to see a performance.
- From Athens International Airport you head towards Attiki Odos which is a new toll road / motorway and costs you 2.70 Euros at the time of writing.
- Follow the signs for Elefsina / Korinthos (E94) until they divide into Korinthos and Elefsina, in which case you keep on (left) towards Korinthos (Corinth).
- This leads to the Ethniki Odos / National Road 8 (Athens-Corinth) where you will pay another toll of 2.80 Euros and stay on route towards Korinthos. You'll start seeing signs for Epidavros and depending on if you want to stop at the Corinth Canal for a break or not, you take one of two exits as you approach Corinth interchange.
- The first exit, Exit A, towards Epidavros takes you to the Corinth Canal, from where you can then get onto the Corinth - Epidavros (Korinthou - Epidavrou on the map) road for Porto Heli.
- The second exit, Exit B, takes you under a bridge straight to the Corinth - Epidavros road where you then turn left, following signs for Epidavros and/or Spetses.
- If in any doubt, the ONLY way by road to Spetses is through Porto Heli so just follow the signs for Spetses. For some reason signs for Porto Heli itself are not particularly frequent. I've got a Google Map below, showing the junction and the exits.