Getting there: I rode my mountain bike from Sherman Pass, activated Columbia Mountain, and then continued on to Wapaloosie Mountain before backtracking and descending Jungle Hill. Trails are in decent enough condition and there is nothing about the tread that would make them difficult to hike. I did drive the roads to all the trail heads and the road to this one is in good condition. I found it quite passable in my Subaru Forester. If you don't want to ride a mountain bike here from Sherman pass, like some kind of psychopath, rest assured that you'll be able to drive the gravel road to the Wapaloosie trail head.
Activation Zone: It's a relatively easy bushwhack from the trail to the activation zone. Very open. We did it in bike shorts and bike shoes with spd clips, so you'll have no issue doing this in hiking gear. There are trees to hang a wire from if you're into that kinda thing. Plenty of brush to tie things off too. Soft soil that accepts tent stakes as well.
Now that I look at the hiking options for getting there, I think I'm kind of glad I rode my bike. None of the hikes in this zone are exactly short...