rubber trips

we (friends)had, on my request, a trip to " st-jean de matha " about one hour from montréal,to have fun slidding on big time snow!!!!!!!!! fabuleux!!!and it's slidding on a rubber tire, meaning "no controle on the thing speeeeennnniiinngg around " going down at a speed that would scare you and yours and my friends GGGRRRRRRRRRRR!!!!!!! what you see on the picture is us going up the montain carry on a rubber tire to take an other rubber tire,all together , and we go down screaming;freezing the denture!!!!!!