Mason County operates multiple boat ramps providing access to Hood Canal, Puget Sound, and local lakes.

Notable launches include Latimer's Landing (recently renovated with extended ramp for low tide access to Pickering Passage and Case Inlet), Union County Boat Launch (salt water access to Hood Canal, popular during marine fishing season), Mason Lake County Park (year-round launch with ample trailer parking), and Jacoby Park (small launch with salt water access to Hammersley Inlet).

Most facilities are day-use only, open sunrise to sunset, with some offering picnic areas and restrooms seasonally (March-October).