Green laning in devon?

elo all, i live in north devon and i have been off roading on my land in my rangerover hybrid for about a year now and i have bought my first landy defender for the road as i am just about to take my drving test im all insured nd ready to go i have modified the landy with snorkel spotlights steering guard diff guards and a few other things does any 1 no of any sites or good green lanes in the area? and any tips of what kind of places to avoid or any off roading tips welcome and i will read with intrest. thnks alot acheers en

if ya want to do green laneing go buy yerself a o/s map of your area they are clearly defined but never go on yer own and check all the byways are open