5 Lakes of Mt. Fuji - Fastest Crossing
From Openwaterpedia
Distance: 14.5 km (cumulative distance)
Location: Lake Kawaguchi, Lake Sai, Lake Yamanaka, Lake Shoji, and Lake Motosu in Yamanashi Prefecture
Country: Japan
Current Record Holder
Country: USA
Year: 1992
Time: 3:24