When you imagine the Grand canyon, you imagine a giant hole in the Earth, but what you can imagine are the wonders that are held within. Havasu Falls are one of many waterfalls in the Grand Canyon, but they're the most beautiful in my sincere opinion. To get there, you need to go to the Havasupai Navajo reservation and make a short hike into the canyon.
Since it's a desert, it tends to get pretty hot during the day but cool at night. You can go swimming in the little pool at the foot of the waterfall. The water has a high mineral content and they say it's good for the skin. At least it was for mine!