In reply to marsbar:
Yeah, quickest to drive (usually) to The Castle from Cheshunt down the A1055 past Tottenham Hale to Green Lanes, etc. Being on the north side of town, The Peak is actually within striking distance for an evening this time of year too.
Sounds ridiculous but when I lived in Ware, mkean (of this parish) and myself went to the Peak for the evening a couple of times. Knocking off work early at four, we'd share driving, get there (Ramshaw) by about seven, climb until about midnight then be home for three. It was cheaper than 2x returns to Manor House and 2x entry to The Castle as well! You have to be lucky with traffic mind you.