The Urban Ecology Center of Milwaukee made a bunch of bicycles available for attendees of the conference I went to last month. Given that it was the Ecological Society of America conference it was a good match. The bikes were free! You just had to leave your driver's license while you borrowed one.
I had a few hours free the last morning of the conference so I borrowed a bike and went for a ride. It was a good way to see much more of Milwaukee than I would have by walking. I saw the art museum, then rode north along the lakeshore for several miles before heading inland and eventually back toward downtown.
The boathouse was a serendipitous discovery when I decided to turn right instead of left. It is nowhere near the lake.