public void OnMapReady (GoogleMap googleMap)
		{
			map = googleMap;

			var polygonOptions = new PolygonOptions ();
			polygonOptions.InvokeFillColor (0x66FF0000);
			polygonOptions.InvokeStrokeColor (0x660000FF);
			polygonOptions.InvokeStrokeWidth (30.0f);

			foreach (var position in shapeCoordinates) {
				polygonOptions.Add (new LatLng (position.Latitude, position.Longitude));
			}

			map.AddPolygon (polygonOptions);
		}