In reply to spearing05:
Its a great way up the Ben. There is a path to the right of the waterslide. Follow this up to the coire and go up the right side of the coire and across a boulder field to arrive at the top of the abseil posts at the start of the Carn Mor Dearg arete, from here turn left up to the top of the Ben.
A good descent is to head west and then South West towards Carn Dearg and so back into Coire Eoghainn and back down beside the Waterslide.
I suspect ice axe and crampons and certainly good navigation ability is needed for this route under current conditions.
Post edited at 14:26