The park tells you not to use your phone's map

Tucson, Arizona is home to the nation's largest cacti. The giant saguaro
is the universal symbol of the American west, and these plants are **found
only in a small portion of the United States**. Saguaro National Park protects
them, east and west of the modern city of Tucson, where you can see the
enormous cacti silhouetted against a desert sunset.

Two districts, and a navigation warning

The park has two districts separated by the city of Tucson. The address
for the West District is 2700 N Kinney Rd.

**The park recommends against using mobile mapping applications to search for
either district.** Instead, work out which one you are visiting, look up its
physical address on the park's directions page, and enter that into your
phone.

A park telling visitors not to search for it by name is unusual enough to take
seriously: a search for "Saguaro National Park" can send you to the wrong side
of a city.

When to be outside

In summer, restrict outdoor activities to before 10 a.m. or after 4 p.m.
That is the park's own strong recommendation, and at 110°F it is not
cautiousness.

Late summer into early autumn brings heavy monsoon rains, giving cooler
but more humid afternoons and evenings — and flash flooding is a concern
at that time of year.

Location: National Park, Arizona. Source: U.S. National Park Service.