luckydog, there certainly is the availability to return your Hertz car at BNE International (as there are dedicated rental car lanes as you enter the airport area), although I will hasten to add that I cannot recall any Hertz Desk inside the International Terminal. I can only presume that the return area (perhaps better known as a "shed") is located in the carpark (similar to the returns area at BNE Domestic). I can't say that I have ever looked for it (being a local, I've never returned a car there)....