The Kongsberg Simrad supplied integrated positioning & multibeam package used by Thales GeoSolutions and Sonsub in a detailed survey of the Prestige tanker wreck has produced several industry firsts. Phase I of the Prestige site survey was carried out to examine the integrity of the vessel's hull, in order that a decision could be made on how to handle the remaining cargo of oil trapped inside the crippled wreck, which lies on the seabed at a depth of (3,850 m). 4000m rated LBL transponders & ROV HPR transceivers; EM2000, ROV mounted Multi-beam echo sounding system; Hydroacoustic Aided Inertial Navigation (HAIN) system, integrated into the LBL system.