Tranquille Sanatorium, located near Kamloops in the British Columbia interior, is considered by many to be one of the most haunted locations in the province. The facility opened in 1907 as a tuberculosis sanatorium, taking advantage of the hot, dry Kamloops climate, which was believed to benefit TB patients. Over its decades of operation, thousands of patients were treated within its walls, and many died there.
The sanatorium later served as a facility for people with developmental disabilities before closing in 1983. Since its closure, the site has attracted urban explorers and paranormal investigators who report extensive phenomena. Visitors describe hearing coughing in the empty wards, seeing figures in hospital gowns standing at windows, and experiencing an oppressive sadness in the former patient rooms.
The building's underground tunnels, which connected the various wards and service buildings, are considered the most active area, with reports of footsteps, whispered voices, and the feeling of hands grabbing at visitors. The sanatorium's stunning location — overlooking the confluence of the North and South Thompson Rivers in the semi-arid BC interior — creates a beautiful but melancholy setting where the natural landscape seems at odds with the human suffering that occurred within the buildings.