Dame Herza Canyon, actually part of the Dame Herza oasis, is the first oasis from Tozer, via Nefta into the oasis, which is the location of the Oscar film "British Patient". Due to the natural environment, there are many crystal mines here. After a stone is knocked and peeled, it is the crystal original stone. There are also sales on the stalls, but it is mainly white crystals. The price is very high. Some look very purple, in fact, purple potion stained, not recommended.