Organ Pipe National Monument Ajo, AZ (part of Tucson Guide)

It's a 168-mile drive from Tucson, but it's worth it. Nowhere else in the United States can you see those rare and stately organ pipe cacti growing in the wild, surrounded by majestic deserts and mountain ranges. Head out of Tucson west on AZ Highway 86 past Kitt Peak. The trip will take you across the vast area of the Tohono O'odham reservation to the tiny town of Why, where you turn left and drive 35 miles south to the park headquarters. The park is suitable to be explored either by hiking or driving. There is a $4 access charge per vehicle, and a $8 fee for overnight camping (no hookups, no showers). Camping is free at another primitive campground designed for backpackers.