Grand Canyon National Park consists of the South, North, and East Rims, and is managed by the U.S. National Park Service. However, the West Rim is maintained by the Hualapai Tribe, and so, it is a private tourist attraction. In general, you’ll get the best views with a helicopter tour over the Grand Canyon South Rim. Since below-the-rim landings aren’t allowed in this part of the park, the natural environment is better protected here. On the other hand, the West Rim is quite popular, and this is the only place where you can take a Grand Canyon helicopter landing tour to explore the canyon floor. Moreover, if you’re interested in other attractions like boat rides, they’re available at Grand Canyon West. Finally, the West Rim is also closer to Las Vegas (2.5 hours versus 4 hours to the South Rim), so take that into account.