Agua Caliente Park is one of the best picnic spots in Tucson. There are hiking trails too. I am amazed at how many locals were unaware of it. Below is a slideshow of photos I took one April. Hover over the pics to see a description. Below that is a map to show you how to get there and this link to Agua Caliente will take you to the Park's website for more detailed information.
For a list of the Best Park and Gardens visit our page.