The new McDonaldland shake, depending on which size you order, runs between 510-900 calories. Here's what it tastes like.

McDonald's new adult Happy Meal features a trip to the nostalgic McDonaldland, with a volcano shake and more. See inside and where to get in NJ.

You can choose from a Quarter Pounder with cheese or a 10-piece McNugget order. It also comes with the chain's famous french fries and your choice of drink. But the specialty drink that's made to go with the meal is called the Mt. McDonaldland shake, and it's a blazing blue color, topped with hot pink whipped cream.