You walk 100 yards south, to the north end of Pipeline Canyon Trail, then turn northwest for a little over a mile. Then head back. Anyone not using a walker could do it.
Cottonwood Trail is again decent trail surface. It crosses several sandy, gravelly, washes. It is lined by the usual desert shrubbery: Yellow Paloverde, creosote, brittlebush, etc.
When hiking several trails on a single "hike", log it with a generic name that describes the hike. Then link the trails traveled, check out the example.
WARNING! Hiking and outdoor related sports can be dangerous. Be responsible and prepare for the trip. Study the area you are entering and plan accordingly. Dress for the current and unexpected weather changes. Take plenty of water. Never go alone. Make an itinerary with your plan(s), route(s), destination(s) and expected return time. Give your itinerary to trusted family and/or friends.
To hike From Phoenix, head north on I-17.
Take exit 223B onto Carefree Highway / AZ-74.
Drive west for 11.5 miles.
At the top of the climb from the Agua Fria River, turn right on Castle Hot Springs Rd. The park’s North Gate is on the right in 5.6 miles. Where you park from there depends on which trails you do, in which direction.
0.4 miles past the gate, turn right on Cottonwood Ln. Drive to the end, then park.