I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
Includes coast to coast bike trail but lots of dirt track and old mines, in a valley so well protected. A few places to park throughout the area, including the Fox and hounds pub in scorrier if you don’t mind a little walk or have a bike.
This is a 1km family friendly gravel bike/walking trail near the Carnon River
At the opposite end of the trail to the car park is the old Poldice Mine that has some interesting old buildings and a chimney