Pick where to stay first and your Japan trip falls into place. Tokyo, Osaka, Kyoto, Okinawa, Hokkaido, Kyushu and Nagoya compared by age, season and transport, with verified baby cot and room-size details.
An in-house kids' space is more than rainy day insurance. It lets children play at zero distance, day or night. 8 top hotels with ball pits and all-weather play areas, plus how to choose.