Guelph Lake is a large reservoir located in Guelph, Ontario, Canada. It was created in the 1970s by damming the Speed River and serves as a vital water supply for the region. The lake covers approximately 1,200 acres and is surrounded by scenic parkland, making it a popular destination for outdoor activities. The area around Guelph Lake offers various recreational opportunities, including hiking, biking, and fishing. The Guelph Lake Conservation Area features trails and picnic spots, attracting visitors year-round. Additionally, the lake is home to diverse wildlife, contributing to the area's natural beauty and ecological importance.