Annotation coordinates

Yes, you should be able to that. The attribute annotations on the MKMapView object provides an array of objects that respond to the MKAnnotation protocol. The coordinate attribute is a required element of MKAnnotation, while title and subtitle are optional.

You should be able to do something like (winging the code, sorry):

Code:

for (NSObject<MKAnnotation> *annot in map.annotations) {
// do something with the annot MKAnnotation object regarding its coordinate, title, and subtitle
    NSLog(@"Coordinate=(%0.3f,0.3f)",annot.coordinate.latitude,annot.coordinate.longitude);
}

The objects in the annotations array are likely a mixture of system (e.g., MKUserLocation) and your custom objects, you can test that annot object to see if it's one of yours (i.e., [annot isKindOfClass:[YourCustomClass class]]) and use more specific methods.