diff --git a/data/styles/default/include/Basemap.mapcss b/data/styles/default/include/Basemap.mapcss
index d87a3e5cb..8a45a1c71 100644
--- a/data/styles/default/include/Basemap.mapcss
+++ b/data/styles/default/include/Basemap.mapcss
@@ -224,13 +224,13 @@ area|z10-17[boundary=protected_area][protect_class=1],
 
 line|z10-[boundary=national_park],
 line|z10-[boundary=protected_area][protect_class=1],
-{width: 2; color: @protected_nature;}
+{width: 0.5; opacity: 0.3; color: @protected_nature;}
 
 area|z10-16[boundary=aboriginal_lands],
 {fill-opacity: 0.07; fill-color: @indigenous_lands;}
 
 line|z10-[boundary=aboriginal_lands],
-{width: 2; color: @indigenous_lands;}
+{width: 0.5; opacity: 0.3; color: @indigenous_lands;}
 
 /* ToDo: Assume that military areas already have fences? */