private void AddMarker(GoogleMap map, double lat, double lon, int title, int snippet)
        {
            MarkerOptions options = new MarkerOptions();

            options.InvokePosition(new LatLng(lat, lon));
            options.InvokeTitle(GetString(title));
            options.InvokeSnippet(GetString(snippet));

            map.AddMarker(options);
        }