Powerful waves fueled by high water pushed around the walkway on top of the breakwall at McQuade Safe Harbor north of Duluth. EMILY STONE by northwildsAugust 1, 2019August 1, 2019 Share0 Powerful waves fueled by high water pushed around the walkway on top of the breakwall at McQuade Safe Harbor north of Duluth. EMILY STONE Subscribe to Northern Wilds Newsletter