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Outdoors
Dan Kraker
Duluth

Swimmers complete record 24-hour Lake Superior relay — without wetsuits

Relay team also wants to draw attention to rapidly warming lake

A woman stands near the shore preparing to swim.
Karen Zemlin stands for a portrait along the shore of Lake Superior near Split Rock Lighthouse on Tuesday. Enduring water temperatures in the mid-60s, a group of swimmers began a 24-hour, 48-mile relay from near Split Rock Lighthouse to Duluth.
Derek Montgomery for MPR News

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