The Osthoff Resort, in Elkhart Lake, Wisconsin, is a premier AAA Four Diamond resort located on 500 ft of recreational lakefr ... ont. Offering a casual atmosphere within its' elegant surroundings, The Osthoff Resort provides a romantic getaway for couples, while year-round indoor and outdoor activities, provide a family with many opportunities to enjoy spending time together. Our conference center offers spacious and well-appointed ballrooms and meeting rooms to assist in the productivity of retreats and conferences for our group guests. A host of seasonal getaway packages are available providing guests varying options for a holiday vacation. Whether spring, summer, fall or winter - The Osthoff Resort is Your place on the lake™. read more