Plans released by Boston 2024 show most of the Common and a significant portion of the Public Garden - including the Make Way for Ducklings statues - off limits to the public during the Olympics. Construction of a 16,000-seat beach-volleyball stadium and related structures, meanwhile, would shut the ball fields and other parts of the Common for months before the games.

The plans also show Charles Street shut for both access to the beach volleyball and for the start and finish of the Olympic marathon. The Public Garden along Charles would also be within the "secure perimeter," with a ticket gate for spectators between the Lagoon and Mrs. Mallard.

Frog Pond would also be shut to the public, according to the Boston 2024 proposal. The Frog Pond playground might still be open, though. The Public Garden Lagoon and the Swan Boats dock would be outside the fence, although many people would have to take a roundabout way to get to the dock because the path from Charles would be shut.

The volleyball stadium, intended as a temporary structure, would sit mainly on the ball fields along Charles,with a number of structures planned for the large grassy fields by the parking-garage entrances. This would leave the trees now along Charles, but might require chopping down some trees deeper inside the Common.

The red line shows the security perimeter:

The Olympic marathon would start and finish on the Beacon Street side of Charles Street and wend its way through the Back Bay, downtown, South Boston, the North End, Cambridge, Allston and Brookline.

Athletes and Olympic panjandrums would have access to the venues via dedicated lanes on the turnpike, Stuart Street and Charles Street (the plans seem to indicate the Common garage would be used for their vehicles; the Massachusetts Convention Center Authority, which owns the garage, is an enthusiastic backer of the Olympics proposal). Spectators could use any of the nearby Red, Orange and Green Line stops.

Boston 2024 sports venue proposal (70.5M PDF).