Katsuobushi, a type of dried and smoked tuna that is often used to flavor dishes and is a key ingredient in dashi.
In Japan, there is a restaurant where you can catch your own fish and have it cooked for you.
The Hells of Beppu in Beppu, a city on the island of Kyushu, are a series of hot springs that are too hot for bathing, but are a unique and interesting sight to see.