Osawatomie’s Lights On The Lake is Osawatomie’s newest annual tradition. Complete with a parade, games, inflatables, concert, fireworks and more. Osawatomie’s Lights On The Lake is an event put on by the City and Local businesses. It is a combination of the Jamboree and the 4th of July Firework Display. It will be held the Saturday before the Fourth of July at Osawatomie City Lake.