in York theirs Reid Menzer which you've probably seen and is nice as hell, in lancaster theres Overlook, Skate It, Lititz, Quarryville, and a ton of other small ones. over by Philly there's Woodward, FDR, and other parks...but thats kind of a stretch. up north in Bethlehem theres the Skate Plaza which i hear is amazing. thats basically it for parks (that i know of)
but if you come to Elizabethtown in lancaster there is street galore