Indiana man attempts record-breaking swim across Lake Michigan and back

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CHICAGO, Ill.-- A Chesterton, Indiana man is attempting a record-breaking swim cross Lake Michigan and back.

Scott Wolford began his 120-mile swim Thursday morning, WGN-TV reports. The 51-year-old man expects the feat to take at least 70 hours.

He is escorted by a support boat and will swim wearing only a bathing suit, cap and goggles.

According to WGN-TV, a few people have swam successfully across the lake, but have done it on teams of while wearing wetsuits.

Wolford is using the event to spread awareness of the importance of clean water. He's also raising money for The Nature Conservancy programs.

His progress can be tracked in real time here.