Professor Bert Powsey - Pier Diver
Pier Diving was a phenomenon that kept the crowds entertained in seaside resorts around the British Isles in the late 19th and early 20th centuries. A number of gentlemen, usually taking the “title” of Professor would mount a pedal cycle at the dry end of the pier and pedal furiously to gain as much speed as possible before hurtling themselves off the opposite end and into the sea.
Also see
One legged diver http://365project.org/oldjosh/additional/2013-10-21