Mentaiko is cured and spiced pollock roe, with a deep flavor provided by kombu and katsuobushi broth. Discover the secrets of a beloved food that spread from Fukuoka to the rest of Japan. (Reporter: Janni Olsson)

Wakasagi—small, 10-cm fish—are the star of Japan's winter fishing season. Drill holes in an icy lake for some line fishing, and meet fishers who are passionate about conservation efforts. (Reporter: Janni Olsson)