There's a reason this place was featured on the cover on National Geographic, it is a MUST-SEE place! It's far from the easiest destination to get to but that is what makes it that much better. The town of Supai which is where the waterfalls are located have no roads that go there so it is only accessible via a 12 mile hike each way or $80 helicopter ride each way, it is one of the few towns left in United States that still gets their mail by pack mules. They only allow a certain amount of visitors each season which keeps it from being overcrowded so if you can manage to book a reservation, consider yourself very lucky. There are campsites, cabins, and a motel, they will not allow you to hike in for the day, you must have an overnight reservation to hike in. This really is a place that everyone must see, it's absolutely incredible to be here!
The trailhead is about a 7 hour drive from Orange County so you'll likely want to drive out the day/night before your hike and get a motel either in Kingman or Peach Springs. Peach Springs will be the closer option and is on Hualapai Nation land so you'll be supporting them by staying there over Kingman. From there you'll have a much shorter drive the morning of your hike and you'll be well rested for the 12 mile hike in. Keep in mind that you'll be on Indian land the entire way from Peach Springs on so please remember that we are visitors on their land so make sure to have the utmost respect. All the directions will be provided to you after booking your campsite from their website. From the trailhead to the town of Supai is about 10 miles, the hike begins from the parking lot dropping down into the canyon via switchbacks, the rest of the hike is mostly flat in the canyon which is beautiful. Once you get into the town of Supai, you'll find a small market with groceries and a cafe, the town also has a motel, school, and church. It's asked that while hiking through the town to not photograph the native people out of respect and not to intrude on their way of life. From the town, you'll keep hiking and reach Navajo Falls about a mile away before reaching Supai Falls (the main waterfall) at about 2 miles from the town. The campground is spread out along about a 1 mile stretch of the river between Supai Falls and Mooney Falls. Once at your campsite, you can continue the hike past the campground to Mooney Falls but it is a very steep descent requiring ladder climbing so use at your own risk, after that you can keep hiking about 3 more miles to Beaver Falls which is typically less crowded and worth the hike. If you're feeling more adventurous, you can hike about 9 miles on a not so well kept up trail to the Colorado River and Grand Canyon, if you do this you'll basically be following the Supai River so there is not really anywhere to get lost since you'll be in the bottom of the canyon the whole time. This will add 18 miles round trip from the campground and will require some rock scrambling and being comfortable with hiking along cliffs with faint trails.but the effort is well worth it as once you reach the Colorado River you'll see where the blue Supai water mixes with the green/brown Colorado River water.On your hike back out to the parking lot, the hiking through the canyon is easy the entire way until you get to the last mile or so where you will be going up the steep switchbacks that you hiked down on the way in.
While staying at the campgrounds, there is 1 spigot with naturally filtered water pouring out from the mountain, it's up to you whether or not you want to filter it with your own filter as well. There is sometimes a stand at the top of the campgrounds that sells Indian tacos and some other food items, otherwise you'll need to hike back to Supai to have more food options. There are also several Phoenix toilets available around the campground.
If you decide to take the helicopter, make sure you arrive early because a long line forms. The helicopter will take you from the parking lot to the town of Supai so you will still need to hike a couple miles but will save you about 10 miles each way. What I recommend is to hike in so you can take in the pure beauty of the canyon then helicopter out if you need to since the hike is harder going back and you will likely be tired.