Take the Palisades Parkway from northern NJ into Rockland County, NY, then follow the signs for "Bear Mountain".
I completed my break in period during a drive through that area (and I've gone several times since then). Its very curvy with lots of changes in elevation.
2008 BMW 535i Space Gray, Black Leather, Dark Bamboo Trim| Sport Automatic with Paddles | Sport Package
2008 BMW M5 (gone, but not forgotten) Space Gray, Silverstone Merino Leather, Madeira Walnut Wood Trim | 7speed SMG | All options
Mods: Corsa Exhaust | RPI Ram Air Intake | H&R Sport Springs | Rogue Engineering 12mm spacers