Captain Ito
From Openwaterpedia

Captain Ito guiding Lynton Mortensen on his 9 hour 34 minute crossing of the Tsugaru Channel on 14 August 2018
Captain Harumitsu Ito is a Japanese fisherman and escort boat pilot who guides solo and relay swimmers in crossings of the Tsugaru Channel on behalf of Ocean-navi and the Tsugaru Channel Swimming Association.