Christina Lake is a lake located along the Crowsnest Highway in the south-central area of British Columbia known as Boundary Country, which separates the Okanagan region from the West Kootenays. It is located 23 kilometres east of Grand Forks, just 1 km north of the United States border. The region experiences very hot, dry summers which results in July and early August water temperatures averaging in the 23°C (73.4 Degrees Fahrenheit) range. Divers will experience thermoclines beginning at a depth of approximately 10 feet in the summer.