Camp X was the unofficial name of the secret Special Training School No. 103, a Second World War British paramilitary installation for training covert agents in the methods required for success in clandestine operations. It was located on the northwestern shore of Lake Ontario between Whitby and Oshawa in Ontario, Canada. The area is known today as Intrepid Park, after the code name for Sir William Stephenson, Director of British Security Co-ordination (BSC), who established the program to create the training facility.
The facility was jointly operated by the Canadian military, with help from Foreign Affairs and the RCMP but commanded by the BSC; it also had close ties with MI6. In addition to the training program, the Camp had a communications tower that could send and transmit radio and telegraph communications, called Hydra.Established December 6, 1941, the training facility closed before the end of 1944; the buildings were removed in 1969 and a monument was erected at the site.Historian Bruce Forsyth summarized the purpose of the facility: "Trainees at the camp learned sabotage techniques, subversion, intelligence gathering, lock picking, explosives training, radio communications, encode/decode, recruiting techniques for partisans, the art of silent killing and unarmed combat." Communication training, including Morse code, was also provided. The existence of the camp was kept such a secret that even Canadian Prime Minister William Lyon Mackenzie King was unaware of its full purpose.