Travel and Transportation in Aruba
They do have taxi service there. A lot of tour buses that run tours around the island. And rental cars. There's probably, as a matter of fact they have traffic jams down there, believe it or not. If you're trying to go through downtown [at] any time of the day, and there's only one road that runs from the airport through downtown to the high-rises, you're going to hit a traffic jam. And you're going to be stopped for maybe thirty minutes while pedestrians cross the street and people wait for them. So you get a backup.
In this video a retired U.S. Army Sergeant describes his experience with travel and transportation in Aruba.