Unless you are a bird watcher or a shipwreck student, a week is a long time to spend there. LADE (Lineas Areas del Estado) flown by the Argentine Airforce used to provide weekly service before the war on a flight from AEP that made about 5 stops on the way. Now you have to fly from Chile but there is a direct flight from England. I made a trip there in March 1982, a few weeks before the war.