Eastern Market – Union Station loop from Potomac Avenue

Rock Creek Park loop — Silver Spring

Mt. Vernon via Fox Hunt Park — Alexandria

Lake Needwood via Rock Creek Trail — Rockville

Needwood Loop

Upper Potomac River Loop around northwest of Washington, D.C.

Belmont Bay Loop — Mason Neck National Wildlife Refuge

Washington, Alexandria & Arlington loop — Washington

Alexandria Loop

Bluemont Caboose – Gravelly Point Park loop from Fort Barnard Heights

Rock Creek Park – Crossing Creek at Klingle Road loop from L'Enfant Plaza

Crossing Over the C&O Canal – Francis Scott Key Bridge loop from Bethesda

Gravelly Point Park – Waterfront Park loop from Navy Yard–Ballpark