The ship that brought me from the Hokkaidō mainland in Wakkanai, to Rishiri Island, to Rebun Island, and back home. I was able to travel this roundtrip in a single, glorious day. The name of the ship appears to be サイプリア宗谷, which translates as Cypria Soya, which most likely relates to the Soya Straight north of the mainland (definitely unrelated to soy sauce - that's a different character).
taken on 16 August 2017, 9:08
location: Oshidomari in Rishiri, Hokkaidō, Japan