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Ancient City Underneath a Birch Forest Island

A survival island start with a Dripstone Cave and an Ancient City lurking beneath.

An aerial view of a large island covered in birch trees, with a narrow channel of water to the east separating it from a mainland. The island has some steep, stony shores, and a small marker indicates the spawn point on the island.
3D fly-over of the world around spawn, rendered from the seed. Click to open it in the interactive 3D map.
Version
Java 26.2
+11
26.226.1.226.1.126.11.21.111.21.101.21.91.21.81.21.71.21.61.21.51.21.4
Spawn
-152, -88
Spawn biome
Old Growth Birch Forest
Seed -160651901770093487

This seed offers an intriguing start on a substantial Old Growth Birch Forest island, perfect for a survival island challenge. While the immediate spawn is quite tranquil, you're only about 281 blocks from an Ancient City, making for a challenging early-game objective. The island itself provides ample wood and a scenic, relatively safe initial base.

Beyond the island, the surrounding waters are dominated by Ocean and Cold Ocean biomes, with a Shipwreck about 194 blocks away for some early loot. For those who enjoy a bit of vertical exploration, Jagged Peaks are within about 226 blocks, offering a change of scenery and potential mining opportunities. This seed caters to players who enjoy a slightly isolated start with a clear, ambitious goal nearby.

The world is mostly water close to spawn, but the mainland to the east provides a vast expanse of diverse biomes further afield. You'll find a Mineshaft about 162 blocks away, and a Ruined Portal about 251 blocks from spawn. This allows for both subterranean and above-ground exploration within reasonable distances.

What you land in

You spawn at y=113, standing in a small Old Growth Birch Forest on an island. The terrain is mostly flat around your immediate spawn point, with dense birch trees all around. To your east, a stony shore quickly drops into the ocean, providing immediate access to water-based resources.

Structures nearest to spawn

You'll find an Ancient City about 281 blocks away, making it a challenging but rewarding early-game objective. A Mineshaft is also relatively close, about 162 blocks from spawn. Many other structures are a longer journey, so plan your expeditions carefully.

StructureCoordinates (X, Z)Blocks from spawn
Amethyst Geode -163, -67 24
Mineshaft -208, -240 162
Shipwreck 0, 32 194
Ocean Ruin -288, 112 242
Ruined Portal 48, 64 251
Ancient City -176, -368 281
Trial Chambers -320, 192 327
Trail Ruins 592, -208 754
Buried Treasure 425, 409 762
Ocean Monument -288, 672 772
Village -528, -880 877
Woodland Mansion -864, -976 1,138
Pillager Outpost -160, 1,264 1,352
Swamp Hut 288, 1,264 1,422
Jungle Temple 752, 1,184 1,561
Desert Pyramid 1,552, 224 1,732
Igloo -1,216, 1,552 1,955
Stronghold 980, 1,364 1,841

Nearest instance of each type inside a 5,000-block box centred on spawn. Coordinates are the structure's origin; ancient cities and mineshafts sit far below the surface.

Biome mix around spawn

The immediate area is dominated by Old Growth Birch Forest, with Stony Shore and Taiga nearby. A large amount of Ocean and Cold Ocean surrounds the island, perfect for aquatic exploration. Jagged Peaks are about 226 blocks away for those seeking mountainous terrain.

BiomeShareNearest patch (blocks)
Cold Ocean 20.5% 91
Ocean 19.5% 64
Deep Cold Ocean 14.1% 304
Forest 7.6% 181
River 4.9% 72
Stony Shore 3.7% 32
Old Growth Birch Forest 3.2% 0
Plains 2.6% 590
Birch Forest 2.6% 128
Dark Forest 2.5% 1,005
Taiga 2.2% 32
Beach 2.2% 668
Deep Frozen Ocean 1.9% 1,163
Jungle 1.8% 869
Deep Ocean 1.8% 304
Lukewarm Ocean 1.7% 933
Grove 1.6% 160
Sparse Jungle 1.4% 897
Jagged Peaks 1.2% 226
Savanna 1.1% 1,160
Flower Forest 1% 708

Surface biome sampled on a grid across a 2,048×2,048 block box centred on spawn. Biomes under 1% share are omitted, except the biome you spawn in.

Is this seed for you?

This seed is best for players who enjoy a survival island start with the immediate goal of tackling an Ancient City. It's also great for those who prefer a balance of land and sea, with plenty of water for exploration and a variety of biomes available after a short journey. A mountain base is also an option with the nearby Jagged Peaks.

Worth it for

  • Ancient City about 281 blocks away, a challenging early-game goal
  • Survival island start with ample wood from Old Growth Birch Forest
  • Jagged Peaks about 226 blocks away for varied terrain and mining
  • Mineshaft about 162 blocks away for early resource gathering

Worth knowing

  • Nearest village is a long 877-block trip
  • Spawn is flat, not dramatic, on a birch forest island
  • Many desirable structures are over 700 blocks away