From the most Southern suburb of Athens you the coastal road and turn inland in the direction of Porto Rafti. Here you will find lots of nice places along the sea-side to stop for a coffee.
From here you'll soon enter one of the most scenic roads in Attica in the direction or Keratea! Soon after leaving Keratea you'll find yourself surrounded by vineyards. From there you are on your way back to the coastal road which will lead you back to Vouliagmeni!