From Piraeus port Saronic Ferries Ferry Boats daily, gate 8.
From Piraeus port with Flying Dolphins daily, 1 hour trip
Flying Dolphin (Hellenic Seaways)
By car via the National Road Athens - Corinth, then continue to Epidaurus - Galata. 2 hours trip.
From Galata to Poros there is connection with small boats and ferries.