McGarvey Shoal is located in the Lake Superior North Shore Inside Passage. More than a shallow reef, it is the peak of an underwater mountain that rises from a depth of 270 feet to three feet below the water’s surface. The shoal is the site of a famous shipwreck, the Gunilda. The luxury steam yacht foundered here in 1911 after its owner refused to hire a pilot to navigate the treacherous waters of the Schreiber Channel. The crew and passengers safely disembarked, but efforts to dislodge Gunildia caused her to sink; today, she is preserved 266 feet below the lake’s surface.