Whiterock skatepark has been around a looooong time! It received a modernization around 97 or 98 and became a premiere skatepark. The Snakerun is phenomenally smooth and fast although a little tilted downhill. It can be worked though as proof in the photos.
The ledges, banks, and railing that were added in the second phase are top notch. A real fun kinked square rail you've seen a many videos is not to be missed. If you're in the Seattle - Vancouver B.c. area this park is not to be passed up on.