Divers on display: Great Lakes Aquarium volunteers enjoy running underwater – Duluth News Tribune March 8, 2018 Scuba Diving Divers on display: Great Lakes Aquarium volunteers enjoy going underwater Duluth News Tribune Volunteer divers Mark Wick( left) and Jeff Hofslund feed fish at the Great Lakes Aquarium while Jenna Zamzow narrates the event for visitors. Steve Kuchera/ skuchera @duluthnews. com1/ 5. Jeff Hofslund feeds a sturgeon at the Great Lakes Aquarium …