We did not take the train. For this one, I booked a tour with Klook. We met at a hotel near our hotel, we rode in a van which took us supposedly to a snow park, but because snow was falling hard, the expressway was closed. Then we went to the zoo, because of road conditions, we arrived late, less than an hour from closing time. Then we were taken to certain picture spots before ningle terrace. After ningle terrace, we were brought back to the meet up point.

I am not too sure as we stumbled upon the place when we did a last minute change of plan. Maybe try finding their website for opening season

U can get assistance from the concierge of New Furano Hotel to get a cab for u to rtn to the station.

Yes it should open unless the weather broadcast says otherwise, but it is good to check their website as the day gets nearer or you can also contact the hotel you are staying for more update as their services are always tip top. Enjoy.

The area is quite remote. I think you could try to get it via hotel front desk.