Deadly mountainbike route

Date: 9/26/2018

I am going to go mointain bike with my family and even my 7 year old sister on a deadly track. I have done it before and i already died once(??). It consists of a hill of white sahara sand and a river. The route is deadly because you can die of disease there. We go bike and there are some difficult parts. One time i step on the foot of my brother when i tried to brake and once i slipped with my bike against my already fallen sister.