Animate MKMapCamera in Swift 2

AnimateMapCamera.swift

//Create a new MKMapCamera object. 
//Looking at, is where you want it to look at, in this example I keep it the same so use the map views current center coordinate
//I up the altitude (zoom out) by adding 1600 on to the current position
//Pitch and heading are the rotation and angle of the camera

let newCameraPosition = MKMapCamera(lookingAtCenterCoordinate: mapView.centerCoordinate, fromDistance: mapView.camera.altitude + 1600, pitch: 50, heading: -30)

//Animate the camera, here over 5 seconds with a 1.5 second delay, the options are fairly self explanitory.

UIView.animateWithDuration(5, delay: 1.5, options: [.AllowUserInteraction, .CurveEaseInOut], animations: {
    self.mapView.camera = newCameraPosition
}) { success in
    //Animation completed...
}