Pewaukee Lake is the largest lake in Waukesha County, and provides some of the best fishing in all of Southeast Wisconsin! Whether you like to fish in summer, or you'd rather ice fish in winter, you will have luck here! The lake is about 5 miles long and 1 mile wide, and is known for its inland sailing races. Three public boat launches and the public beach at Lakefront Park in Downtown Pewaukee make this lake accessible and easy to use for all! For some relaxing summer fun, find the sand bar over by Wilson's Island on the lake, tie up the boat and enjoy the sun! Or take in the fireworks from the lake on your boat, Lakefront Park or City Beach.