There are several good spots just short walk from the Apache Wash Trailhead, which has plenty of parking and nice restrooms. It's especially pretty at sunset, when you can photograph the saguaros silhouetted against the setting sun.
From Desert Vista Trailhead you start on the Hawks Nest Trail. Take a right onto Desert Tortoise Trail then a left onto Valle Verde Trail. I see plenty of cacti in that valley.
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