Not sure why they call it Cape Final although if you take one more step at this Grand Canyon rim viewpoint, it will be your final. It’s about a 3,000 foot drop from this point. To get there, you hike two miles through a Ponderosa pine forest with moderate elevation gain. The trail head is a few miles north of the main road to Cape Royal at the North Rim. You can actually obtain a back country permit in order to camp here overnight. I plan to do that sometime soon.