Walled Lake is a 670-acre all-sports lake situated on the border of the City of Walled Lake and Commerce Township in Oakland County, Michigan. The lake reaches depths of approximately 50 feet at its deepest point and offers approximately 500 feet of public lakefront access at Mercer Beach, the primary public access point maintained by the City of Walled Lake.

As an all-sports lake, Walled Lake accommodates motorized watercraft including speedboats, jet skis, and sailboats, making it a high-activity water body, particularly during summer weekends. Paddlers should expect boat traffic and wakes, especially during peak hours. The lake's size provides adequate room for paddling, though kayakers and canoers may prefer early morning or weekday outings for calmer conditions.

Public access for hand-carry watercraft is available at Mercer Beach on East Walled Lake Drive, which underwent improvements in 1997 including the addition of a 60-foot barrier-free boardwalk. The beach area features picnic amenities and serves as the primary launch point for non-motorized craft. Note that there is no state or regional DNR boat launch on Walled Lake, and the municipal park's limited size means parking can be constrained during busy periods.

The lake is part of the Huron River Watershed and connects to the region's chain of lakes, though direct paddling connections are limited. Water quality is generally considered good, supporting various fish species including bass, pike, and panfish. The shoreline is predominantly lined with private residences, offering limited opportunities for beach landings outside the public park area.

Paddlers should be prepared for variable wind conditions on this sizable lake, wear appropriate personal flotation devices, and maintain awareness of motorized boat traffic. The lake's all-sports designation means paddlers share the water with faster-moving vessels, requiring defensive paddling practices and high visibility on the water. For quieter paddling experiences, nearby Huron River access points or smaller no-wake lakes in Oakland County may be preferable alternatives.