The datum used for these positions is WGS 84. These positions should be moved 0.01 minutes Southward and 0.08 minutes Eastward for plotting on the older version of Admiralty Chart 1464 (OSGB 36).
The bar channel should not be used at any time other than 3 hours either side of High Water (Depending on sea state).
The wreck of the Grampian Castle lies in position 053° 07.30’N 004° 22.97’W.
Mariners are advised to exercise caution in this area.