Green fee is normally £55 weekday or £70 weekend but if you book online: £30 Mon-Thu anytime and £35 at weekends after 1pm. I guess it's a winter offer. They also accept 2-fore-1 vouchers all year on Mon and Tue after 12pm.
The course is designed by Seve. Apparently lots of water so not for the faint hearted! I'm not sure if that also means it gets very wet. It's in East Barnet, 22 miles from Chesfield.