If I remember correctly 3 times around is a mile, and they do have direction signs posted showing which way you should be running. The straightaways are great, they are very wide, the whole side of the ship, however the ends at the port and aft ends of the ship are very narrow. You go right thru the engine area. There are mirrors mounted up on the walls so that you can see around the corners when you are running. I ran only twice during my May 15th Wonder cruise and although a couple of people were walking, it was pretty quiet on the "track". There were maintainence guys in yellow jumpsuits doing some work and the deck had many people laying in deck chairs, and some people playing shuffleboard. I found no problem going around them. Both times I had a very peaceful, uneventful run.