Badaling Great Wall Pully

Could you please tell me how fast this goes (miles or km per hour), I read some where it is a bit like a Fair Ground Ride. Does it stay up right at all times and not upside down.
I have a fear of heights and a petrified of cable cars. Walking all the way up and back could be to hard in the heat at age (57) so thinking the pulley may be best. Is there any web site to see a video of the pulley trip up.
Thank You