Lake Couchiching is a freshwater lake located in central Ontario, Canada. It is part of the Trent-Severn Waterway and is situated just south of Lake Simcoe. The lake covers an area of approximately 1,500 hectares and has a maximum depth of about 20 meters. It is known for its scenic beauty and recreational opportunities. The lake is surrounded by several communities, including Orillia and Ramara. Popular activities on Lake Couchiching include fishing, boating, and swimming. The lake also supports a variety of wildlife, making it an important ecological area in the region.