Index: /trunk/styles/standard/elemstyles.mapcss
===================================================================
--- /trunk/styles/standard/elemstyles.mapcss	(revision 8503)
+++ /trunk/styles/standard/elemstyles.mapcss	(revision 8504)
@@ -4008,6 +4008,9 @@
 }
 way[natural=coastline] {
-    width: 1;
+    width: 2;
     color: water#0000ff;
+    right-casing-color: water#0000ff;
+    right-casing-width: 5;
+    right-casing-opacity: 0.30; 
 }
 area[natural=mud] {