Hi I live about 25 minutes from Nemacolin, I was just there recently for a military function with my stepdad and there is TONS to do!
A little zoo, playground, The Wildside (which is an arcade with a bowling alley and rock wall, a bar, you can also build your own race car for about $50), golf (of course) horse back riding, spa, also a doggie spa. The resort alone has a lot to offer.
But nearby is Ohiopyle, excellent waterfalls, natural waterslides, bike/walking trails. I am closer to Uniontown, not really anything there worth visiting.
Kennywood and Idlewild are great! Idlewild for the little ones, and Kennywood for the bigger kids...
I could go on for pages, PM with any questions and I can help!