The nearest stations are in Girona and Flaçà. You can take a taxi or an AMPSA or SARFA companies bus from either.
If arriving at Barcelona airport, take a train to Girona or Flaçà and then a taxi or an AMPSA company bus. If arriving at Girona airport, either take a taxi or go to Girona city bus station and take a bus to L'Estartit.
If arriving by car on the AP-7 motorway, take exits 5, 6 or 7. If arriving on the N-II main road, follow the indications to Torroella de Montgrí.
Google maps features an application for creating your own route.
Lat 42,053403 (42º 3' 12" N), Long 3,19626 (3º 11' 58" E)
UTM = 31N 516338,4655923