Assault Force ‘J’. Survey. After the initial assault one LCP(Sy) was transferred to Sword. The remainder carried surveying tasks on the Juno beaches. On the morning of D Day they examined the beaches in the Juno area in general. They were then to find the most suitable places for beaching LSTs at or near high water so they could discharge without drying out. They then reported to Naval Officer In Charge and Principal Beach Master. It had been hoped that the LCP(Sy) would find areas of beach suitable for beaching LSTs at high water. Such sites would have a steeper slope than was usual on the Normandy beaches so that the LST could remain afloat and have its ramp either on dry land, which was unlikely, or in three foot of water. The only site found likely to be suitable was at the western end of Mike, to the west of Mike 2 exit. In the afternoon of D Day they were to locate the off lying areas of rocky ledge and buoy the following. - Mike Channel. Between Roches de la Margueritte and Roches de la Valette. - Nan Channel. Close to the west of Les Essarts de Langrune. - Gooseberry Anchorage. To the south of the Gooseberry position. - DUKW Channel. Across Les Essarts de Langrune where there is most water from Nan White to the Coaster Anchorage. Channels were to be two cables wide and two fathoms deep. On the morning of D+1 they surveyed and marked positions for Gooseberry 4 as required by the officer responsible for planting the ships. He arrived with the Corncob tugs at 0500. They then surveyed and marked out positions for the Coaster Hauling Off Buoys. Two trots of buoys, parallel to the shore and as close to it as possible, were to be marked with 400 feet between buoys. In the afternoon of D+1 they surveyed and marked the channel into Courseulles. It was hoped that the harbour could be used for unloading coasters and other craft. In addition the LCP(Sy) were available to locate and mark dangerous wrecks which they could reach while remaining afloat (those aground were the Beach Groups responsibility). If necessary they assisted in marking beach obstructions which had not been cleared. The LCP(Sy) remained responsible for the maintenance of all buoys, day and night, until the Naval Officer In Charge decided that they were no longer required. In much of the work they were assisted by LCP(L) which carried buoys and other equipment so that the survey craft need not interrupt their work. A reserve of buoys was carried on headquarters ships and warships. Mike.