Castle Mountain and the Castle Cliffs are a striking mountain view along the Bow Valley Parkway aka Hwy 1A in Banff National Park Alberta. There is a small turn out with a parking lot on the north side of the hwy with a sign to direct you off the road. Here you will have a very short walk to the lookout platform offering breathtaking views of Castle Mountain and the cliffs above. This road is open year round and can be a bit dicey when there is snow on the ground. There are seasonal closures to be aware of as well. Best to check the Parks Canada website for the Bow Valley Parkway conditions and current closures before heading out.