Located in the Shasta Cascade area of Northern California, Castella sees many visitors and has a number of summer homes in the area. Visitors use Castella as a base to engage in nationally recognized trout fishing in the nearby Sacramento McCloud and Klamath, Rivers, or come to see and climb Mount Shasta, Castle Crags or the Trinity Alps. Visitors also engage in nearby skiing (both alpine and cross-country), or bike or hike to the waterfalls, streams and lakes in the area, including nearby Mossbrae Falls, Lake Siskiyou, Castle Lake and Shasta Lake.