This cache was part of the old Chelmer and Blackwater Navigation series. Placed with the kind permission of Essex Waterways, please refer to the Chelmer and Blackwater Navigation (GC37P3P) cache for more information on this walk along the canal.
Mersea Island (formerly Mersey Island) is the most easterly inhabited island in the United Kingdom, located marginally off the coast of Essex, England, 9 miles (14 km) to the southeast of Colchester. It is situated in the estuary area of the Blackwater and Colne rivers and has an area of around 7 square miles (18 km2). The name 'Mersea' is derived from the Old English meresig meaning 'island of the pool',
