What are some of the beautiful natural wonders in Iran?

My bucket list of places to visit in Iran, with this mini-list focusing on the natural environment:

Kaluts, Kerman
Keshit canyon, Kerman
Hormoz colorful landscapes, Persian Gulf
Yalan great dunes, Kerman
Bisheh waterfall, Lorestan
Badabsourt, Mazandaran
Arasbaran forests, Tabriz
Damavand peak, Tehran
Tabas kaleh jenni, Yazd
Alisadr cave, Hamedan