The only way to get in is on the Crowsnest Highway Hwy 3 via Hope in the west or Princeton in the east.
From Vancouver, it is approximately 3 hrs driving time east along Hwy 1 and Hwy 3. Coming from Kelowna, it is approximately 2.5 hrs driving by heading south along Hwy 97 and then following the 3A and Hwy 3 west.