 The city has many indoor and outdoor ice rinks, including curling facilities.Duluth is also home to the Lake Superior Surfing Club which currently has about 50 members who surf the cold waters of Lake Superior.The University of Minnesota Duluth Recreational Sport Outdoor Program offers classes in kayak, stand-up paddleboarding, or canoe whitewater river running, and they hold the Annual St. Louis River Whitewater Rendezvous Slalom & Sprint Races in July.