Half-way into the Grand Canyon, just west of Grand Canyon National Park, is the town of Supai on the Havasupai Indian Reservation. Surrounded by the towering cliffs of the Grand Canyon, this tiny enclave is only accessible by foot, horseback or helicopter. It is one of the most inaccessible towns in the Continental United States. But, surprisingly, it is not this phenomenally unique town that makes Havasupai famous – it’s the waterfalls.