If you’re arriving by car, the easiest landmark is the Kursaal Congress Center.
If arriving by plane, you can land at Bilbao- Loiu airport, San Sebastián-Hondarribia aiport, or Biarritz airport.
From Loiu-Bilbao airport, there is a bus every half hour (www.pesa.net) to the San Sebastián Bus Station, with a journey time of just over an hour. From Biarritz Airport , there are direct buses (www.pesa.net) to San Sebastián Bus Station.
From Fuenterrabia, you can take a taxi or bus, E21 Hondarribia-Aeropuerto-Donostia in front of the airport (departs every hour or hour and a half), which will take you to the Bus Station, just a 7-minute walk from Hotel Arrizul Congress.
Whether arriving at the Train Station, or by bus at the Bus Station (next to the Train Station), you can walk to the hotel. Both are a 7-minute walk from the hotel.