Take highway AP7 until Exit 9B (Lloret). In 1 km., take exit 9A, which will take you to road C-35. Stay on it for 13 km. until it merges with C-65. After 10 km., take exit 314 (Platja d'Aro).
Exit highway AP7 on Exit 7 (Girona Sud - Sant Feliu de Guíxols), which connects with road C-65. Stay on it for about 24 km. until taking exit 314 (Platja d'Aro).
Once in Platja d'Aro:
Once you exit C-65 by taking Exit 314, you will find 4 roundabouts. Always take the second exit (towards downtown Platja d'Aro). Just before the fifth roundabout you will see La Terrassa Hotel on your left hand side. In front of Platja d'Aro City Hall.
Ryanair Airlines offers flights from different locations to the Girona-Costa Brava Airport GRN. From there,there is bus and Taxi services which takes you to Platja d'Aro. The Sagalés bus company offers rides from Airport to Girona (20 minutes) on the hour, from where you can take the Sarbus bus (every 2 hours during week days), which will take you to Platja d'Aro in 45 minutes.
There are other airlines that operate at the El Prat Barcelona Airport BCN. From there you can take the train to Girona by using the train company, RENFE, and connecting later with the Sarbus bus service.
Take the train till Girona in Sants Barcelona or Gràcia Barcelona stations, or Portbou if arriving from France, with the RENFE train company. When you arrive to Girona (approximately 75 minutes), you can take a bus with Sarbus, which will take you to Platja d'Aro in about 45 minutes.