The pastime of punting - propelling a long, flat-bottomed boat along the river - is popular in both cities.

BBC: The Oxford versus Cambridge gloat race

The flat-bottom boat balanced precariously just barely above water level, a skilled rower standing and pushing gondola-style from the back.

BBC: Safari by water in southern Africa

We found a 2003, 22-foot Pathfinder, a flat-bottomed boat favored by fishermen, on a lot behind Port St.

FORBES: Boat Bargain

That's short for Forrest L. Wood, a bass-fishing enthusiast from Flippin, Ark. who invented the flat- bottomed Ranger boat.

FORBES: No urinating on-camera, please