Mandy Sumner a North Berwick-native, has set a new world record for the longest swim under ice, which was 75 meters.
Sumner, a professional freediver set the mark in Norway.
A Maine woman has broken the record for the world's longest swim under ice! (📸: Mandy Sumner)
DETAILS: https://t.co/RiOjfErnmd pic.twitter.com/oRqob59IT7
— CBS 13 News (@WGME) March 4, 2024
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