Unfortunately Rosa is away so won’t be there on Sunday, as am I.
However, the details are as follows:
Parking in the free car park on the far side of the dam at Rivelin Reservoir off the A57. Guide book ref SK279872.
Suggest meet in car park 9.45.
Otherwise , walk back over dam, cross to footpath opposite and work your way uphill trending left to the obvious Rivelin Needle as a starting point. Lots of routes at all grades from Mod upwards.
I’ll photograph the guidebook page and put it on WhatsApp Evening Climbers page.
Have fun
Paul G.