The Onset Boat Ramp is a town-owned municipal ramp in Wareham featuring a 16-foot-wide, 104-foot-long concrete launching surface upgraded in 2017, providing access to Onset Bay and upper Buzzards Bay.

The ramp accommodates both motorboats and paddlecraft (kayaks and paddleboards) and is conveniently located near popular fishing destinations like Point Independence and Wickets Island.

As a municipal facility, it is open to all Massachusetts residents with no use fee, though parking may be subject to local regulations.