5/5 - Excellent
Check the no 7 bus timetable as not all of the buses do this detour which means you have to walk a fair bit back to the main route. It is a stunning view looking down to the bottom of the 580 metre cliff through the glass floor. No charge to go in and great fun sitting nearby watching people's reactions as they manoeuvre themselves onto the viewing platform. Take cash for the restaurant which does a very good quiche among other things. You can spend from half an hour to half a day here