Japan has a highly developed public transportation system, including bullet trains (Shinkansen) that can travel up to 320 km/h (200 mph).
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.
Matsuyama is a city located on the island of Shikoku, and is known for its historic castle, hot springs, and literary history.