diff --git a/src/main/java/ca/recrown/islandsurvivalcraft/world/generation/IslandWorldChunkGenerator.java b/src/main/java/ca/recrown/islandsurvivalcraft/world/generation/IslandWorldChunkGenerator.java
index ec61a5e..86107b9 100644
--- a/src/main/java/ca/recrown/islandsurvivalcraft/world/generation/IslandWorldChunkGenerator.java
+++ b/src/main/java/ca/recrown/islandsurvivalcraft/world/generation/IslandWorldChunkGenerator.java
@@ -1,6 +1,11 @@
 package ca.recrown.islandsurvivalcraft.world.generation;
 
+import java.util.LinkedList;
 import java.util.Random;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
 
 import org.bukkit.Chunk;
 import org.bukkit.Material;
@@ -23,39 +28,57 @@ public class IslandWorldChunkGenerator extends ChunkGenerator implements Listene
     private final Cache<Point2, Double> blockValueCache = new Cache<>(102400);
     private final Cache<Point2, Biome[]> biomeCache = new Cache<>(102400);
     private final Cache<Point2, Boolean> chunkExistenceCache = new Cache<>(16384);
+    private final ExecutorService executor = Executors.newFixedThreadPool(2);
     private volatile World currentWorld;
 
     @Override
-    public ChunkData generateChunkData(World world, Random random, int x, int z, BiomeGrid biome) {
+    public ChunkData generateChunkData(World world, Random random, int chunkX, int chunkZ, BiomeGrid biomeGrid) {
         this.currentWorld = world;
         IslandWorldMapper mapper = new IslandWorldMapper(random, blockValueCache);
         TemperatureMapGenerator temperatureMapGenerator = new TemperatureMapGenerator(world.getSeed());
         BiomeSelector biomeSelector = new BiomeSelector(random);
         biomeSelector.initialize();
-        WorldHeightShader heightShader = new WorldHeightShader(world.getSeed(), mapper, world.getSeaLevel(), world.getMaxHeight(), 3);
+        WorldHeightShader heightShader = new WorldHeightShader(world.getSeed(), mapper, world.getSeaLevel(),
+                world.getMaxHeight(), 3);
         BiomeGenerator biomeGenerator = new UniBiomeIslandGenerator();
 
         int maxHeight = world.getMaxHeight();
+        LinkedList<Future<Boolean>> biomeColumns = new LinkedList<>();
         ChunkData chunkData = createChunkData(world);
 
         Biome[][] biomes = new Biome[Utilities.CHUNK_SIZE][Utilities.CHUNK_SIZE];
         for (int localX = 0; localX < Utilities.CHUNK_SIZE; localX++) {
             for (int localZ = 0; localZ < Utilities.CHUNK_SIZE; localZ++) {
                 if (biomes[localX][localZ] == null) {
-                    biomeGenerator.generateBiomeColumn(biomes, world, x, z, localX, localZ, mapper, biomeSelector, temperatureMapGenerator, biomeCache, chunkExistenceCache);
+                    biomeGenerator.generateBiomeColumn(biomes, world, chunkX, chunkZ, localX, localZ, mapper, biomeSelector,
+                            temperatureMapGenerator, biomeCache, chunkExistenceCache);
                 }
                 if (biomes[localX][localZ] == null) throw new IllegalStateException("Biome was null.");
-                for (int y = 0; y < maxHeight; y++) {
-                    biome.setBiome(x, y, z, biomes[localX][localZ]);
-                }
-                int worldX = 16 * x + localX;
-                int worldZ = 16 * z + localZ;
+
+                final int biomeX = localX;
+                final int biomeZ = localZ;
+                biomeColumns.add(executor.submit(() -> {
+                    for (int y = 0; y < maxHeight; y++) {
+                        biomeGrid.setBiome(biomeX, y, biomeZ, biomes[biomeX][biomeZ]);
+                    }
+                    return true;
+                }));
+
+                int worldX = 16 * chunkX + localX;
+                int worldZ = 16 * chunkZ + localZ;
                 int height = heightShader.getAltitude(worldX, worldZ, biomes[localX][localZ]);
-                chunkData.setRegion(localX, 1, localZ, localX+1, height, localZ+1, Material.DIAMOND_BLOCK);
+                chunkData.setRegion(localX, 1, localZ, localX + 1, height, localZ + 1, Material.DIAMOND_BLOCK);
             }
         }
         chunkData.setRegion(0, 0, 0, 16, 1, 16, Material.BEDROCK);
-
+        while (!biomeColumns.isEmpty()) {
+            try {
+                biomeColumns.poll().get();
+            } catch (ExecutionException | InterruptedException e) {
+                e.printStackTrace();
+                throw new IllegalStateException(e.getCause().getMessage());
+            }
+        }
         return chunkData;
     }