Posted by andy clayton on May 06, 2013 at 07:15:01 user cousin_jack.
In Reply to: Secret Water posted by John Nichols on May 06, 2013 at 05:51:53:
http://footpathmaps.com/
This will take you to some good mapping. Type in 'Walton-on-the-Naze' and it should take you to the most recent mapping of the area.
There are signs that since the 1930's the sea level has risen and encroached on some of the islands Ransome knew, but the out-lines are still recognisable. The map scale you are first presented with is 1:50,000, each grid square is 1km.
The mile is 1760 yards, (5280 ft). 1 meter is 3.2808 ft. 1ft is .3048 meters.
Hope that helps some.