Yamaroku Shoyu (soy source brewery) is famous for Authentic natural barrel-filled soy sauce. The soy source brewery runs a cafe "Yamaroku cafe".
Although tourists have to walk long distance to mountain side from Kusakabe port, they visit the cafe to eat the cafe's original soy source sweets.
Visitor tour is also available at the soy source brewery. You can experience the taste and smells of soy source with your whole body.