An annual effort to clean the waters of Marquette’s Lower Harbor is returning Saturday. For the fourth straight year, the Great Lakes Scuba Divers and Lake Preservation Club is holding its Underwater Cleanup. Each year, divers from the U.P. and even the Midwest have come to the Lower Harbor to pick up tons of tires and other junk at the bottom of Lake Superior. Read the full story by WLUC-TV – Marquette, MI.