The Waterfall Trail at White Tank Mountain Regional Park in Waddell, Arizona is a very popular and easy 1.8 mile out-and-back hike up to one of the only waterfalls near Phoenix. This waterfall only runs during the rainy season and after heavy rainfalls. Be sure to get out quickly after it rains as the waterfall dries up quickly.
The trail starts out paved and runs between two large foothills of White Tank Mountain while heading gradually uphill towards the waterfall. Eventually the paved section ends, but the trail itself is easy to walk on until you reach the rock steps up to the waterfall.
Just before the waterfall, you'll start to see larger boulders and steps that head into a canyon. Not much further up the trail lies the waterfall - depending on the season.
Admission Fee: There's a $7 fee to enter the park with a vehicle. You can read more about the fees here.