To reach Hydra Beach Resort from Athens, choose Attiki Odos or the National Road from Athens to Corinth. After about an hour on the National Road and immediately after passing the Isthmus of Corinth, follow the first exit on the right for Epidaurus and below the bridge, turn left towards Epidaurus, Spetses, Kranidi and Ermioni. Befotre  the city of Kranidi at the roundabout   follow the signs (second exit to the left)  towards Ermioni and Thermisia