This preserve has just been opened and allows for some short walkabouts. There is some up and down if you take all the trails but it only adds up to about a mile and a half. That's easy for a hiker like you.
Parking on Linea Del Cielo, of course, means you're taking your life into your hands on that very busy road but, what the heck.....you're an adult....and you're paid to make those kind of life and death decisions....so have at it!