diff --git a/css/25_areas.css b/css/25_areas.css
index 2c27c0607..081302258 100644
--- a/css/25_areas.css
+++ b/css/25_areas.css
@@ -80,7 +80,9 @@ path.stroke.tag-natural-water,
 path.stroke.tag-landuse-aquaculture,
 path.stroke.tag-landuse-basin,
 path.stroke.tag-landuse-harbour,
-path.stroke.tag-landuse-reservoir {
+path.stroke.tag-landuse-reservoir,
+path.stroke.tag-man_made-groyne,
+path.stroke.tag-man_made-breakwater {
     stroke: rgb(119, 211, 222);
 }
 path.fill.tag-amenity-swimming_pool,
diff --git a/css/50_misc.css b/css/50_misc.css
index 25ed4e08a..ee52751ce 100644
--- a/css/50_misc.css
+++ b/css/50_misc.css
@@ -96,16 +96,20 @@ path.line.stroke.tag-natural-tree_row {
 }
 
 
-/* barriers */
+/* barriers and similar */
 path.line.stroke.tag-barrier:not(.tag-barrier-hedge) {
     stroke: #ddd;
 }
-path.line.stroke.tag-barrier {
+path.line.stroke.tag-barrier,
+path.stroke.tag-man_made-groyne,
+path.stroke.tag-man_made-breakwater {
     stroke-width: 3px;
     stroke-linecap: round;
     stroke-dasharray: 15, 5, 1, 5;
 }
-.low-zoom path.line.stroke.tag-barrier {
+.low-zoom path.line.stroke.tag-barrier,
+.low-zoom path.stroke.tag-man_made-groyne,
+.low-zoom path.stroke.tag-man_made-breakwater {
     stroke-width: 2px;
     stroke-linecap: butt;
     stroke-dasharray: 8, 2, 2, 2;