http://www.ifancyafryup.co.uk/cafes/england/kent/gravesend/nells-cafe.html
Try this link Dave
Coming from the west (coast bound) take the Gravesend East turnoff.
At the roundabout you go almost straight over 2nd exit (
minding the bumpy bit in the middle
)
You will then shortly after come to another roundabout, take 1st exit then shortly after turn right into Nells. You will see the cafe when you reach the 2nd roundabout.