If your first night is Dravo then you have plenty of time to come into town to have a look see. Some times he opens early.

Other places to spend time while he opens is a ride under the convention center, then along the river to the point. If they have the wall fountains on at the convention center it is kind of cool.

You could have lunch at the Bicycle Cafe on southside. Great burgers.

Of course that all assumes it is not raining. Rain tomorrow but I think Saturday is mostly clear. Then rain on Sunday.