hi I'm thinking about getting a bike for my daughter, son, and possibly self (but not admitting that of course). Daughter is 17 and just started road racing, hardly ever been on a bike but doing really well (2 knee slider scrapes, 2 offs and a wheelie), could do with more time on 2 wheels. Son is 14 and interested in trials. Me mountain biker. Not much money left (obviously!) and don't know where to take trails bike near Sheff. Any advice or other comments gratefully received. ........oh I have heard of Doncaster quarry, does it exist?