“Cape Sōya (Sōya-misaki) is the northernmost point of the island of Hokkaidō, Japan and by extension the whole of Japan. It is situated in Wakkanai, Sōya Subprefecture.

“Mamiya Rinzō (1775 – 13 April 1844) was a Japanese explorer of the late Edo period. He is best known for his exploration of Karafuto, now known as Sakhalin. He mapped areas of northeast Asia then unknown to the Japanese.”