I would suggest Arrowhead ... for several reasons:
restaurant on premises
very good launch ramp
covered slips/fish cleaning station right in front of Office/restaurant
gas pump right in front of Office/Restaurant - or a short drive up the road will take you to a gas station/store (slightly cheaper gas)
And, you may not even have to get out of the creek that Arrowhead is in ... there are many docks along the bank opposite of Arrowhead -- Shooting a 1/32-1/16oz jig under them, should get you into some fish. Drifting along the fronts of the docks, and down the bank between the docks, with minnows ... might be another option. Don't forget to cast a jig or jig/float along the banks between the docks, especially the pea gravel or sandy looking banks ... and, of course, to any "timber/wood" that you see. (you can use a 1/16oz jig for casting down those banks - and a 1/16oz Chartreuse Roadrunner is also a good bet)
You "might" be a little late for the Black Crappie, or a little early for the White Crappie ... but, you could also be dead on for either, just depends on the weather & water level fluctuations.
If "Dad" ain't much into casting ... but dragging minnows around isn't working as good as casting/shooting jigs ... have him put on a 1/16oz Chartreuse marabou jig, and "Vertical Cast" the dock posts (see my article on Vertical Casting -- http://www.crappie.com/articles/crappiepappy.htm )
..... take pics, and file a report & post the pics when you get back !! ... luck2ya'll ...cp