[gofer]

My daughter is in a wheelchair. When I was in Japan last year I looked at disabled access to plan our trip (next week). Tokyo and Osaka have extensive metro systems and are very accessible. Both systems have 3D maps of station interiors. With a bit of research with Google maps you can plan trips. Similarly JR have good wheelchair access. I will note however some stations on the Osaka Loop Line are somewhat uncomfortable. For Kanazawa there’s plenty of local buses with wheelchair access. The station is accessible and local buses and taxis are at the station. I don’t know about Nikko, by train you will have to probably make two changes, JR East customer service is helpful. We have a packed itinerary with a lot of travel and will be using public transport everywhere. The one issue is that there’s limited wheelchair seating on Limited Express and Shinkansen trains and they can only be booked a month in advance and not necessarily on line. I do know a Tokyo based travel agent who specialises in disabled travel if you want their contact details.