Crear un icon que me abra una mapa de ubicacion

void setUpMap(){
  GMSServices.provideAPIKey("AIzaSyB1tFdMPC-UyLzE7xEJL95x8A0xZEn1bJI")
  let camera = GMSCameraPosition.camera(withLatitude: -33.86, longitude: 151.20, zoom: 6.0)
  let mapView = GMSMapView.map(withFrame: CGRect.zero, camera: camera)
  view = mapView
  
  // Creates a marker in the center of the map.
  let marker = GMSMarker()
  marker.position = CLLocationCoordinate2D(latitude: -33.86, longitude: 151.20)
  marker.title = "Sydney"
  marker.snippet = "Australia"
  marker.map = mapView
}