Osborn Bay Lake encompasses 321 acres within the Banks Lake system in Washington state, located near Electric City, Grand Coulee, and Coulee Dam. The bay features a primitive road maintained by Washington Department of Fish and Wildlife (WDFW) that provides access and parking around the eastern portion of the bay.

The area is part of the dramatic channeled scablands landscape, with basalt cliffs and rock formations creating a striking backdrop for paddling. Steamboat Rock dominates the skyline to the south. The bay connects to the larger Banks Lake system, offering opportunities to explore numerous rocky islands, protected coves, and the narrow passage known as Lover's Lane.

When crossing the main channel, paddlers should exercise caution due to frequent speedboat traffic. The more protected waters near shore and in Lover's Lane offer calmer conditions suitable for leisurely exploration. The shallow entrance to Lover's Lane effectively blocks larger boats, creating a haven for paddle craft.

Wildlife viewing opportunities abound, particularly for birds. The area serves as habitat for waterfowl, shorebirds, and birds of prey, including eagles. Spring and fall offer peak bird watching opportunities.

Landing sites can be challenging to find due to steep shorelines, though some rocky shelves and grassy patches provide natural take-out points. There are no designated launch facilities within the bay itself, but nearby Steamboat Rock State Park and Northrup Point provide access points.

A Discover Pass is required for parking at WDFW areas. The area is open year-round, though spring through fall are the primary paddling seasons. During these warmer months, paddlers should be aware of the potential presence of rattlesnakes on shore.

Note that high winds can develop quickly on Banks Lake, creating challenging paddling conditions. The bay's position within the greater Banks Lake system allows for both short excursions and extended touring opportunities along the 27-mile length of the main lake.