Dashi, a type of stock made from fish and seaweed, is a key ingredient in many Japanese dishes and is often used to add flavor and umami.

The Tokyo Marathon, first held in 2007, has become one of the most popular marathons in the world, with over 30,000 runners participating each year.

The Shiretoko National Park in Hokkaido is a UNESCO World Heritage Site and a popular destination for wildlife watching, with opportunities to see brown bears and rare bird species.