 Tourists also may drive on the North Shore Scenic Drive to Gooseberry Falls State Park, Baptism Falls (Minnesota's largest waterfall), the vertical cliff of Palisade Head, Isle Royale National Park (reached via ferry), Grand Portage National Monument in Grand Portage, and High Falls of the Pigeon River (on the Canada–US border).Thunder Bay, Ontario, can be reached by following the highway into Canada along Lake Superior.In 2006, a volunteer task force was formed to manage the spiraling retiree health care benefit obligations that were threatening to bankrupt the city.