For those interested in accessible skiing in Japan, you can try:

• Fujimi Kougen Snow Resort: http://fujimikogen-ski.jp/rentalandschool/rental/monoski.html (English top page: https://snow.gurunavi.com/guide/htm/r0861ens.htm)

@Kamil, thanks for your help – it looks like Japan  is getting better at accepting foreign papers 🙂

Thanks @melanie_lmt

I asked on Facebook as well and it really seems to be at the discretion of the staff member.

One person mentioned:

We have the Victorian companion card and we were going to try to use it for a taxi discount in Tokyo, but the driver just gave it to us without documentation

So, you can bring the card and try to use it,… Read more

@kamil did you have any problems?