diff --git a/4_grids/1_earth-day.sh b/4_grids/1_earth-day.sh
index ad5f018..e867ab4 100755
--- a/4_grids/1_earth-day.sh
+++ b/4_grids/1_earth-day.sh
@@ -7,9 +7,18 @@ gmt begin 1_earth-day png
 #   -Rg: specify the global domain (0/360/-90/90)
     gmt basemap -Rg -JW-65/15c -B+n
 
+#   DCW-Collections
+#    gmt basemap -JM15c -B+n -RIHO1 # Baltic Sea
+#    gmt basemap -JM15c -B+n -RCSPS  # Caspian Sea
+#    gmt basemap -JM15c -B+n -RBRNI  # Borneo Island
+#    gmt basemap -JM15c -B+n -RUN005 # South America (UN)
+#    gmt basemap -JM15c -B+n -RSAM   # South America (geographically)
+#    gmt basemap -JM15c -B+n -RSHRD  # Sahara Desert
+
+
 #   Use the Day Image to make the map 
     #gmt grdimage @earth_day_30m  # Resolution define by the user
-    gmt grdimage @earth_day       # Resolution define by GMT
+    gmt grdimage @earth_day     # Resolution define by GMT
 
 #   Plot other things on top of the image
     gmt coast -N1/thinnest,red     # National Boundaries