Tsugaru Strait

The Tsugaru Strait separates the Japanese islands of Honshu (south) and Hokkaido (north), and connects the Sea of Japan (west) to the Pacific Ocean (east). The strait is 19.5 km wide between the western peninsulas of Cape Tappi and Cape Shirakami, and 18.8 km wide between the eastern peninsulas of Cape Ōma and Cape Shiokubi.

Due to west-to-east cross-currents which change velocity but not direction with the tides, it is very difficult to swim the shortest line across the strait. Most swims begin at Cape Kodomari on the western peninsula on Honshu, which adds about 10 km to the distance but provides more leeway to make land on Hokkaido.

The swim was pioneered by David Yudovin in 1990, and is one of the Oceans Seven. One option for piloting is Ocean-Navi.

Route Swims First Fastest
Honshu to Hokkaido 31 Miyuki Fujita - 2005 Dina Levačić - 07:13:15 (2019)
Hokkaido to Honshu 2 Craig Lenning - 2012 Craig Lenning - 10:44:00 (2012)
Honshu to Hokkaido to Honshu to Hokkaido 1 Miyuki Fujita - 2006 Miyuki Fujita - 37:24:00 (2006)
Cape Tappi (Honshu) to Cape Shirakami (Hokkaido) 3 Steven Munatones - 1990 Steven Munatones - 06:11:00 (1990)
Cape Shirakami (Hokkaido) to Cape Tappi (Honshu) 1 Steven Munatones - 1990 Steven Munatones - 06:39:00 (1990)
Cape Ōma (Honshu) to Cape Shiokubi (Hokkaido) 2 Penny Palfrey - 2011 Penny Palfrey - 14:30:00 (2011)
Cape Kodomari (Honshu) to Cape Shirakami (Hokkaido) 9 David Yudovin - 1990 Mariel Hawley Dávila - 06:20:52 (2018)
Tsugaru Strait route
Date Name Gender Age Nation Route Km Time
1990 Jul 7 David Yudovin M 38 Cape Kodomari (Honshu) to Cape Shirakami (Hokkaido) 29.3 13:10:00
1990 Jul 29 Steven Munatones M 28 Cape Tappi (Honshu) to Cape Shirakami (Hokkaido) 19.5 06:11:00
1990 Jul 30 Steven Munatones M 28 Cape Shirakami (Hokkaido) to Cape Tappi (Honshu) 19.5 06:39:00
2005 NA NA Miyuki Fujita F Honshu to Hokkaido 19.5 11:36:00
2006 NA NA Miyuki Fujita F Honshu to Hokkaido to Honshu to Hokkaido 58.5 37:24:00
2011 Sep 20 Penny Palfrey F 49 Cape Ōma (Honshu) to Cape Shiokubi (Hokkaido) 18.8 14:30:00
2012 Jul 10 Darren Miller M 29 Cape Kodomari (Honshu) to Cape Shirakami (Hokkaido) 29.3 15:55:00
2012 Jul 14 Stephen Redmond M 46 Cape Kodomari (Honshu) to Cape Shirakami (Hokkaido) 29.3 12:45:00
2012 Jul 15 Michelle Macy F 35 Honshu to Hokkaido 19.5 08:55:00
2012 Aug 31 Craig Lenning M 33 Hokkaido to Honshu 19.5 10:44:00
2012 Sep 13 Anna-Carin Nordin F 41 Cape Tappi (Honshu) to Cape Shirakami (Hokkaido) 19.5 19:11:00
2012 Sep 13 Pat Gallant-Charette F 61 Cape Tappi (Honshu) to Cape Shirakami (Hokkaido) 19.5 19:36:00
2012 Sep NA Forrest Nelson M Honshu to Hokkaido 19.5 09:26:00
2013 Aug 12 Adam Walker M 35 Honshu to Hokkaido 19.5 15:31:00
2014 Jul 3 Kimberley Chambers F 37 Honshu to Hokkaido 19.5 09:38:00
2014 Aug NA Attila Mányoki M Honshu to Hokkaido 19.5 07:29:00
2015 Aug NA Guy Moar M Honshu to Hokkaido 19.5 11:32:00
2015 Sep 15 Antonio Argüelles M 56 Cape Kodomari (Honshu) to Cape Shirakami (Hokkaido) 29.3 12:38:00
2015 Sep NA Rohan More M Honshu to Hokkaido 19.5 10:37:00
2015 Sep NA Daniel Curtis M Honshu to Hokkaido 19.5 13:39:00
2016 Aug 12 Abhejali Bernardová F 39 Honshu to Hokkaido 19.5 11:07:00
2016 Aug 19 Stephen Junk M 55 Honshu to Hokkaido 19.5 11:02:00
2016 Aug 24 Honoka Hasegawa F 17-18 Honshu to Hokkaido 19.5 08:31:00
2016 Sep 6 Toshio Tominaga M 73 Honshu to Hokkaido 19.5 09:58:00
2016 Sep 11 Elizabeth Fry F 57 Cape Ōma (Honshu) to Cape Shiokubi (Hokkaido) 18.8 15:48:00
2017 Jul 25 Ion Lazarenco Tiron M 39 Hokkaido to Honshu 19.5 11:20:00
2017 Jul 27 Jorge Crivilles Villanueva M 46 Honshu to Hokkaido 19.5 08:29:00
2017 Aug 30 Adrian Sarchet M 42 Cape Kodomari (Honshu) to Cape Shirakami (Hokkaido) 29.3 14:02:09
2017 Sep 11 Prabhat Koli M 18 Honshu to Hokkaido 19.5 09:52:00
2018 Jun 21 Ryan Utsumi M 39 Cape Kodomari (Honshu) to Cape Shirakami (Hokkaido) 29.3 08:28:00
2018 Jun 21 Cameron Bellamy M 36 Cape Kodomari (Honshu) to Cape Shirakami (Hokkaido) 29.3 11:07:31
2018 Jul 1 Mariel Hawley Dávila F 50 Cape Kodomari (Honshu) to Cape Shirakami (Hokkaido) 29.3 06:20:52
2018 Jul 1 Nora Toledano Cadena F 48 Cape Kodomari (Honshu) to Cape Shirakami (Hokkaido) 29.3 06:20:52
2018 Jul 11 André Wiersig M 46 Honshu to Hokkaido 19.5 12:55:53
2018 Jul 19 Andrew Hunt M 57 Honshu to Hokkaido 19.5 10:52:22
2018 Aug 10 Thomas Pembroke M 29 Honshu to Hokkaido 19.5 15:01:30
2018 Aug 14 Lynton Mortensen M 54 Honshu to Hokkaido 19.5 09:34:15
2018 Aug 19 Masaki Sugita M Honshu to Hokkaido 19.5 13:18:43
2018 Sep 12 Simon Olliver M 54 Honshu to Hokkaido 19.5 11:58:11
2019 Jul 19 Jonathan Ratcliffe M 45 Honshu to Hokkaido 19.5 11:14:00
2019 Jul 20 Claire Faranda F Honshu to Hokkaido 19.5 09:51:24
2019 Aug 5 Kieron Palframan M 45 Honshu to Hokkaido 19.5 08:49:05
2019 Aug 5 Nathalie Pohl F 24 Honshu to Hokkaido 19.5 10:09:40
2019 Aug 19 Dina Levačić F 23 Honshu to Hokkaido 19.5 07:13:15
2019 Aug 19 Marcia Cleveland F 55 Honshu to Hokkaido 19.5 10:11:02
2019 Aug 21 Emre Erdogan M 32 Honshu to Hokkaido 19.5 07:16:17
2019 Aug 21 Matthias Kaßner M 51 Honshu to Hokkaido 19.5 09:45:00
2019 Aug 29 Luca Pozzi M 34 Honshu to Hokkaido 19.5 08:20:58
2019 Aug 30 Herman van der Westhuizen M 53-54 Honshu to Hokkaido 19.5 10:22:37

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