Wadmill is a lake on the todber manor fishery.
it is a good fishery in winter as that is the only time i have ever fished it and like i said, have caught plenty of fish. try their website:
http://www.todbermanor.co.uk/
if you do go there however, make sure you buy some Todber Manor red factor boilies from the on-site tackle shop as i have had 2 rods next to each other, 1 on red factor and 1 on another boilie, caught 5 fish in 2 hours on the red factor, none on the other.