Hello Yao.. I am basically from India but now work and live in Atlanta, GA, USA.. Apart from Antelope Canyon you want to visit, I also intend to travel to Zion National Park, Bryce Canyon, Lake Powell and Horseshoe bend.. I am renting/driving a car in Vegas from/to Vegas to cover all these places in 4 days (07/24 to 07/27) using accommodations at camping tents/sites and made all flight and camping reservations.. (so my dates can not be changed) If you are interested in visiting the above places. we can share the expenses and it also gives you an opportunity to see more National parks in this area... If this sounds interesting, You may reply here or email : rameshbitra@live.com and we can discuss further.. Thank You..