(approx. 2°09.86 W; 49°44.29 N)

“The most remarkable feature of the area is the manner in which the sandbank is in a constant state of flux; at times the site is buried under a dune 2 metres deep, at other times parts of the artefact field have been completely exposed”.

The wreck lies half a mile out to sea from the lighthouse. Excavation boats can be seen over the site

The wreck lies half a mile out to sea from the lighthouse. Excavation boats can be seen over the site

The wreck is situated in 26-30 metres of water, 900 metres (half a mile) to the north of the Alderney lighthouse and approximately 300 metres west by north of a reef known as the Ledge which has a minimum depth of 4 metres at chart datum. A half-mile exclusion zone is in force around the wreck.  Any unauthorised activity (fishing, diving, anchoring, etc.) within the zone is strictly prohibited.  The restricted area is monitored by radar from the Harbour Master’s office.  On the latest admiralty charts the site has been encircled and marked ‘Historic wreck’.

The wreck lies within a large sandbank that is surrounded by dense outcrops of red Alderney sandstone which strikes NNE and dips between 30° and 40° ESE, the same dip and strike as the rocks of the Ledge and on Alderney itself. The sandbank measures approximately 40 metres north-south, 25-35 metres east-west, but the debris apron covers a much larger zone going down to a depth of 34 metres.

The most remarkable feature of the area is the manner in which the sandbank is in a constant state of flux; at times the site is buried under a dune 2 metres deep, at other times parts of the artefact field have been completely exposed. This can be attributed to strong currents which, at the Ledge, have a maximum tidal flow of 7.5 knots during the two-hour period before low water. Because of the strong currents diving can only take place at slack water, which lasts 30-40 minutes and occurs at high water and two hours after low.

Wreck location map

Wreck location map