If you do come out and are looking to make a weekend of it, about 30 minutes north of Nockamixon you will find Blue Mountain's Skyline Park. It's 5 bucks to play, but it's as challenging as you are likely to find anywhere.
Blue Mtn is $10 to ride the lift and totally worth it. (the $5 was only valid
on a promotional weekend). Open only on Sat/Sun.