I added some watercolor to a sketch of the swan boats from the Boston Public Garden. Have you ever ridden them? It is really a slice of the past; the boats travel slowly, propelled by a pedaling pilot sitting within the swan. They travel through the Public Garden Lagoon, past the sights found in the famous Robert McCloskey book "Make Way for Ducklings".
I did a little research. The Swan Boats were introduced to the Public Garden in 1877 by Robert Paget, who combined the popularity of boating in the Garden lagoon with the new and popular mode of transportation, the bicycle. And, interestingly, Paget designed the swan boats with the opera "Lohengrin" in mind during which Lohengrin crosses a river in a boat drawn by a swan.
The fourth generation of the Paget family still runs the Swan Boat operation today. Check out the Swan Boat website from which I pulled a lot of my information.
As always, thanks for looking.