How accurate are NFZ?

[TRIPC]

Going to Hawaii in March. My hotel is right by a airport. It shows to be out of the red circle but wanting to know how accurate it is. The beach is circled in red

 

[hakaniniman]

Like hitting a wall when flying into them, also they extend way beyond. ...in a inverted cone shape. Yiu can not start motors into them, must u se android and beta geofence unlock

 

[Scotflieger]

As the saying goes, read the bloody manual page 47-49 on NFZs.

PS. This changes completely with the forthcoming GEO System.