Belfair lies at the innermost waters of Hood Canal and is home to the internationally-renowned Hood Canal Theler Wetlands, a center for environmental recreation and education.
The main roadway in Belfair is State Highway 3, travelling through the core of Belfair and leading to Bremerton in the north and Allyn in the south. State Route 106 intersects Hwy 3 at the south end of town, where it leads drivers from Befair to Union, farther south along the shores of Hood Canal.
The area is serviced by Mason County Transportation, and public transport is by bus, with a local routes in Belfair and routes  to and from nearby communities of Shelton and Bremerton. The Belfair-Bremerton route connects to the Washington State Ferry system, making it easy for travellers to get to Belfair from Seattle and King County.