The Point sits on top of a hill out the back of Greenwich.
Myth has it that there are secret caverns below the point that lead all the way down to the Thames, and Royal Navy olden times officers would smuggle port and wine up the tunnels to the picture postcard beautiful cottages where they lived at the top of Point Hill.
The tunnel entrance has apparently been boarded up, but some suspect it is in a garden off Maidstone Hill Road beyond the most stately house on this otherwise quaint road of cottages.
Around 50 degrees north of the Greenwich Meridian line. X marks the spot.