I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
The Daymark was built in 1864 by the Dartmouth Harbour Commissioners.
This hollow, octagonal tower is built of limestone and rises to 80ft (24m) high on tall arched legs. It was built as a guide to mariners to the position of the harbour entrance. It is visible for many miles out to sea. Dartmouth harbour is notoriously difficult to find from the sea. In 1863, Charles Seale Hayne, the owner of Brownstone at that time, became a founder member of the Dartmouth Harbour Commission, whose main aim was to improve access and facilities to Dartmouth harbour. The following year, Seale Hayne leased land for the erection of this tower as a day beacon.
It can be reached from the South West Coastal Path just inland from Froward Point. Alternatively, park at Brownstone Car Park (postcode is TQ6 0EQ). Then it’s a gentle walk along a tarmac drive through farmland towards the sea. When you get a little closer you’ll find a short waymarked path across an arable field from the tarmac track to the Day Mark building.