The bus is very easy and convienient (as long as you do not have much luggage). You get it outside the main terminal, buy a ticket at the newstand by the main door (inside). The ride is about 20-30 min into Wawsaw, I can't remember the stop--but it is on the main avenue and at a very large intersection. Get off, walk right about 2 blocks (walking left off the bus takes you onto the road that goes into 'old town'. I always prefer the bus, unless it is very late or I'm in a particular hurry. You get to see more of the town, and I for one 'feel more like a local' which gets me into the mood of whatever city I am visiting. Check out the airport website, it will give lots of information on transit into town.