Lake Motosu

From Openwaterpedia
Mount Fuji from Lake Motosu around the Five Lakes of Mount Fuji
Mount Fuji Triathlon Challenge included open water swims that crossed Lake Yamanaka, Lake Kawaguchi, Lake Sai, Lake Shoji, and Lake Motosu in Yamanashi Prefecture

Lake Motosu (or 本栖湖 or 'Motosu-ko') is the ninth deepest lake of Japan, at 140 meters, and part of the Five Lakes of Mount Fuji. This lake, along with Lake Sai and Lake Shoji, was formed by lava flowing across what is now Aokigahara Jukai Forest and into the enormous lake that once dominated the area, and these three lakes remain still connected by underground waterways.

The Five Lakes of Mount Fuji include Lake Yamanaka, Lake Kawaguchi, Lake Sai, Lake Shoji, and Lake Motosu, and have been successfully traversed by both Lynne Cox in 1985 and Steven Munatones in 1992.

Mount Fuji Triathlon Challenge

The Mount Fuji Triathlon Challenge was an unprecedented 52 km solo triathlon by Steven Munatones, completed in 5 hours 17 minutes. It was followed up by a hike the following day from Fuji Yoshida Station to the summit of Mount Fuji. The course was around and across the Five Lakes of Mount Fuji where the open water swim legs were across Lake Yamanaka, Lake Kawaguchi, Lake Sai, Lake Shoji, and Lake Motosu. The event was televised on NHK-TV in Japan.

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