If you visit the Okhotsk coast of Hokkaido in the east, one of the best places to go is the Genseikaen, or “primeval flower garden”, near Koshimizu. Koshimizu Genseikaen is a beautiful natural park that stretches on a thin piece of land between Lake Tofutsu and the Okhotsk Sea. A genseikaen (原生花園) is an area…