// Tap to set location
@IBAction func mapPoint(_ sender: UITapGestureRecognizer) {

    // Retrieve coordinates
    let location = sender.location(in: self.mapView)
    let locCoord = self.mapView.convert(location, toCoordinateFrom: self.mapView)

    // Create pin
    let annotation = MKPointAnnotation()
    annotation.coordinate = locCoord
    annotation.title = "Meeting Point"

self.mapView.addAnnotation(annotation)

}