You don’t have to book with them but this Rakuten site can give you ideas of what’s available. https://experiences.travel.rakuten.com/destinations/japan/nature-

You don’t have to book with them but this Rakuten site can give you ideas of what’s available. https://experiences.travel.rakuten.com/destinations/japan/nature-outdoors-sports https://experiences.travel.rakuten.com/destinations/japan/na... Although Hiroshima is a big city, I would recommend visiting the Atom Bomb/Peace Memorial. You can visit the building that survived the bomb. A short ferry ride from Hiroshima is Miyajima Island which has Itsukushima Shrine. The shrine big Torii standing in the water is considered one of three most scenic spots in Japan. In Tokyo, if you don’t mind being crowded into a tiny room with giant sweaty men practicing sumo, I would pay to visit a sumo stable practice session and also pay for an interpreter.