I know this is about 2 hours away, but has all the rest of the qualities you want. Take her nymphing the crow. Let her use the water to load the cast, flip it up into the run, teach a simple mend / hookset, once the drift is over she can swing the flies (and get hits there too) and from that position flip up again into the run. Easy as pie, plus she'll catch fish too. I took my wife there and did this with her (she had never flyfished) and she got 4 and lost countless others. Good luck wherever you decide to go. A bit closer to home for you might be Cataract Creek, lots of willing small brook trout in there.