Cape Soya is the northernmost point of mainland Japan.It is located in Wakkanai City, Hokkaido. #JapanTravel #japantrip #Cape Soya #Hokkaido. Cape SōyaHokkaidoHokkaido destinationshokkaido tourhokkaido travelhokkaido tripHokkaido vacationJapanTraveljapantrip北海道Write A CommentYou must be logged in to post a comment.