In Arizona, Saguaro National Park stands out as North America’s most unique desert. Home to the iconic symbol of the Southwest, the Saguaro cacti towers above all else, its shallow roots keeping some as old as 200 years precariously in place. Here, under the shade of the Saguaro, a rich diversity of fauna and flora turn this seemingly uninhabitable landscape into a wildlife refuge. What makes all this possible, is the aptly named fifth season, which brings with it wild tropical-like thunderstorms and heavy rains. After a brief but powerful storm, the reinvigorated wildflowers blossom with unprecedented beauty and many of the parks animals, big and small, reappear from cracks and crevasses to take advantage of this new burst of life.