Green Lake & Central Wisconsin — The State's Deepest Lake, an Opera House & Granite Country
Two hours northwest of Milwaukee, Green Lake is the oldest resort community west of Niagara Falls and, at 237 feet, the deepest natural inland lake in Wisconsin — a clear, spring-fed expanse that has drawn summer visitors to its wooded shores since the 1860s. This unhurried three-day loop settles into that heritage: day one arrives at the storied Heidel House resort grounds and the lake itself; day two crosses to the tiny hamlet of Princeton, with its restored Thrasher Opera House, riverside antique shops, and a gentle Fox River boat tour; and day three wanders the granite quarry country around Montello — home of the celebrated red granite that paved Midwestern cities — before an easy drive home. Two nights on Green Lake anchor a weekend of deep water, small-town culture, and quiet central-Wisconsin countryside, at the relaxed pace the region has always invited.