Courtesy of Masayuki Moriya, Ocean Navi, Japan.
Honoka Hasegawa (長谷川ほのか in Japanese) is a 18-year-old Japanese open water swimmer who became the youngest person to cross the Tsugaru Channel between Honshu and Hokkaido in Japan in 8 hours 31 minutes in August 2016 in 23°C water.
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