Translation of know-it-all in Spanish

At noon we drove back to the tiny airport near the city and a few moments later we were already in the skies. The flight to Saigon, today's name Ho Chi Minh city, lasted more or less one hour.
Basically, I am here to learn Italian and French... some other languages as well, different cultures and meeting nice people. So far, I have made some friendships with Vocabulix, but I am always looking for more.
The next morning we got up a little later than usual. After leaving our room we recognized that this town and region was stunning. Desert and high volcanoes all around us. The place was superb.