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.

Whitby is a town in Durham Region. Whitby is located in Southern Ontario east of Ajax and west of Oshawa, on the north shore of Lake Ontario and is home to the headquarters of Durham Region. It had a population of 138,501 at the 2021 census. It is approximately 45 km (28 mi) east of Toronto, and it is known as a commuter suburb in the Durham Region, east of the Greater Toronto Area. While the southern portion of Whitby is predominantly urban and an economic hub, the northern part of the municipality is more rural and includes the communities of Ashburn, Brooklin, Myrtle, Myrtle Station, and Macedonian Village.