The presence of UXO facilities, remnants of World War II, in the marine environment poses an increasing threat with each passing year. Deposited munitions corrode on the bottom, causing hazardous materials to leach into marine waters. Underwater wrecks of ships, fighter planes, and explosive charges are an obstacle and challenge to pipeline and cable laying work or offshore wind farm construction. UXO sites are a potential risk to offshore project development. UXO Clearance therefore becomes a very urgent task.