The Black Rock Bridge Boat Ramp provides access to Lake Marburg's shallow Black Rock Flats area, a prime location for paddling and fishing within Codorus State Park.

The ramp features parking areas, seasonal restrooms, and is situated near the Mary Ann Furnace Trail, which offers excellent views of the flats from an observation deck.

This access point is particularly popular for launching kayaks and canoes to explore the 1,275-acre lake and its 26 miles of shoreline.