The White Sands National Park is a natural wonder, a desert in New Mexico, USA. It is a field of white dunes (275 sq mi/700 sq km) formed of white gypsum crystals. The desert is the world's largest ...
You can bead-blast the concrete and seal it with several types of products, or apply a new cementitious coating or a synthetic gypsum product (which is different from regular white gypsum).
There’s a lot of anxiety about climate change shrinking Lake Powell, but it also means whitewater rapids upstream have re-emerged. Thrillseekers can now run them for the first time since the 1960s.