They would then use their Hoehn military folboats (collapsible kayaks) to travel into the harbour and attach limpet mines to as many enemy ships as possible. They would then retreat to a volcano section roughly south of Rabaul, where they would hide out until they could safely rendezvous with the submarine. Blamey was sure that the unit would be captured and shot, but he authorised the operation, and issued Carey carte blanche authority to perform whatever actions he deemed necessary during the planning of the proposed operation, which was codenamed "Operation Scorpion".