Being tourists in Pittsburgh, we decided to get a boat tour of the Pittsburgh area. For an hour tour along to the three rivers, it was about $12/person. Gateway Clipper is located in Station Square. We arrived about 30 minutes before our tour, and hung out in the waterfront patio they had. You can get snacks by the water while you wait.
The tour was informative and we got to see the city from the water perspective.
I would recommend the tour if you are planning on exploring the Pittsburgh area.