Lake Nosbonsing is a picturesque and popular fishing location, situated near the much larger Lake Nipissing. Located to the South of North Bay in Ontario, the lake is a product of the glacial outflow from the Great Lakes. At around 7 miles long, the lake covers an area of around 1600 acres. The lake is supplied by both Depot Creek and local springs and has the River Kaibuskong flowing out of the east and running into the River Mattawa. Nosbonsing is separated into two halves by narrows with both parts of the lake including several beautiful bays.

Nosbonsing, located only a few miles from Highway 11, offers all of the fishing benefits of its larger neighbour, Lake Nipissing. It is much smaller, however, making it popular with less experienced fishing enthusiasts or those not wanting to deal with the vast expanse of water of Nippissing. Thousands of people visit the lake every year to take advantage of the great fishing that can be found. It is home to northern pike, white sucker, rock bass, pumpkinseed, cisco, yellow perch, smallmouth bass, walleye and muskellunge. Walleye present the biggest challenge to anglers and are the main attraction to the lake.