diff --git a/island/grid.ts b/island/grid.ts
index 50a5df2..4b7b916 100644
--- a/island/grid.ts
+++ b/island/grid.ts
@@ -147,7 +147,9 @@ export class IslandGrid {
     );
     this.dropWithin(mountainTiles); // GENERATOR
 
-    // const erodePos = islandTiles[islands.rng() % islandTiles.length];
-    // islands.data[erodePos] = Math.max(islands.data[erodePos] - 1, 0);
+    if (lowlandTiles2.length > 1) {
+      const erodePos = lowlandTiles2[this.rng() % lowlandTiles2.length];
+      this.data[erodePos] = Math.max(this.data[erodePos] - 1, 0);
+    }
   }
 }