Upper Montclair Country Club is a gorgeous place with three 9 holes. I played the West and South nines, which are both very fun and challenging given the plethora of bunkers and high rough around the greens.
The club originally had 18 holes designed by A.W. Tillinghast, but a course renovation by Robert Trent Jones Sr. extended the club to 27 holes.
My favorite bit of trivia about the club is that it has hosted PGA, LPGA, and Senior Tour events. Past winners include Hall of Famers Arnold Palmer, Pat Bradley, and Lorena Ochoa.