William H. Harsha Lake, also known as East Fork Lake, is a 2,160-acre reservoir located in Clermont County, Ohio, approximately 25 miles east of Cincinnati. The lake offers unlimited horsepower boating, making it popular for powerboats and jet skis, but also provides excellent opportunities for paddling. Seven boat launch ramps are available around the lake, providing easy access for canoes and kayaks. A no-wake zone extends 300 feet from shore around the entire lake, creating calmer waters for paddlers near the shoreline.

The lake is surrounded by East Fork State Park, which encompasses 4,870 acres of rolling hills and oak-hickory forests. Paddlers can explore numerous coves and inlets, with standing timber and brush visible in some areas, particularly in the upper reaches of Cloverlick and Poplar creeks. The 32.3-mile shoreline is predominantly steep and rocky, with water depth reaching 113 feet near the dam, making it the second deepest lake in Ohio.

Wildlife viewing opportunities abound, with chances to spot white-tailed deer, waterfowl, and various songbirds. Fishing is popular, with largemouth and smallmouth bass, crappie, bluegill, and hybrid striped bass among the species present. The lake is typically at its fullest from spring through early fall, with water levels lowered around September for flood control purposes.

Paddlers should be aware of potential heavy powerboat traffic, especially on weekends and holidays. The lake's water quality is monitored from Memorial Day to Labor Day, with advisories posted if necessary. Facilities for paddlers include picnic areas, restrooms, and a swimming beach. Camping is available at East Fork State Park's campground, offering both electric and full hookup sites.

When planning a paddling trip, it's advisable to check with the park office or Army Corps of Engineers for any specific regulations or temporary restrictions that may affect paddling activities on William H. Harsha Lake.