[Closed] coed y brenin. how hardcore are the black and red runs?

in the mtb wales website it states that the mbr trail and others feature rock steps with a drop of 8 inches.i first read this a 8 foot and was a little intimidated to be honest!! who need a warning about steps of 8 inches?? a roadside curb is four inches!
so how hard or tame are they? im no dh rider,just your average xc bod!