{{for|other types of ruins|Ruins (disambiguation)}}
{{distinguish|Trail Ruins|Shipwreck|Ocean Monument}}
{{Infobox structure
| defaultimagesize = 275px
| group = Cold
| 1-1 = underwater ruin cold.png
| group2 = Warm
| 2-1 = underwater ruin warm.png
| biome = *{{BiomeLink|Ocean}} (all variants)
*{{BiomeLink|Beach}} (sometimes)
| mobs = {{EntityLink|Drowned}}
| blocks =
* {{BlockLink|Bricks}}
* {{BlockLink|Chest}} (random loot)
* {{BlockLink|Chiseled Sandstone}}
* {{BlockLink|Chiseled Stone Bricks}}
* {{BlockLink|Cobblestone}}
* {{BlockLink|Cracked Stone Bricks}}
* {{BlockLink|Cut Sandstone}}
* {{BlockLink|Dark Oak Planks}}
* {{BlockLink|Gravel}}
* {{BlockLink|Kelp}}
* {{BlockLink|Kelp Plant}}
* {{BlockLink|Light Blue Terracotta}}
* {{BlockLink|Magma Block}}
* {{BlockLink|Mossy Cobblestone}}
* {{BlockLink|Mossy Stone Bricks}}
* {{BlockLink|Obsidian}}
* {{BlockLink|Polished Diorite}}
* {{BlockLink|Polished Granite}}
* {{BlockLink|Prismarine}}
* {{BlockLink|Purple Glazed Terracotta}}
* {{BlockLink|Sand}}
* {{BlockLink|Sandstone}}
* {{BlockLink|Sandstone Stairs}}
* {{BlockLink|Sea Lantern}}
* {{BlockLink|Seagrass}}
* {{BlockLink|Spruce Planks}}
* {{BlockLink|Stone Bricks}}
* {{BlockLink|Stone Brick Stairs}}
* {{BlockLink|Suspicious Gravel}}
* {{BlockLink|Suspicious Sand}}
* {{BlockLink|Tall Seagrass}}
* {{BlockLink|Water}}
| canspawn = No
}}
'''Ocean ruins''' are [[structure]]s primarily composed of [[stone bricks]] or [[sandstone]]. They are found in [[ocean]] biomes and rarely on [[beach]]es. They contain [[chest]]s, [[suspicious sand]], and [[suspicious gravel]], which hold a variety of [[loot]], notably the buried [[treasure map]] and the [[sniffer egg]]. These ruins have cold and warm underwater variants that vary from large villages to single ruined huts.

== Generation ==
Cold ocean ruins generate in normal, cold, and frozen [[ocean]] biomes or in their deep variants. They are composed of stone materials and contain some [[suspicious gravel]] blocks that can be excavated using a [[brush]].

Warm ocean ruins generate in warm, lukewarm, and deep lukewarm ocean biomes, and are composed of sandstone and stone materials as well as having some blocks of [[suspicious sand]] within them.

Ocean ruins may at times be at least partially buried, including with their airspaces. During generation, all air blocks and structure blocks act as [[structure void]]s. This means that their associated suspicious blocks are also located under layers of usual [[sand]], [[gravel]], and even [[stone]].

Suspicious sand and gravel randomly replace sand and gravel respectively during generation, and are not part of the [[structure definition]].

Although most ocean ruins generate underwater, they sometimes generate on land, bordering a [[beach]] or another seaside [[biome]].

30% of ocean ruins generate as large ocean ruins; the other 70% generate as small ruins. If the ocean ruin is large, there is a 90% chance for 4-8 (inclusive) small ocean ruins to generate around it in a cluster. If the ocean ruin is warm, large ocean ruins generate with a [[structure integrity]] of 0.9 and small ocean ruins generate with a structure integrity of 0.8. If the ocean ruin is cold, the "brick" variant of the chosen structure type generates with a structure integrity of 0.9 if large and 0.8 if small. The "cracked" variant generates with a structure integrity of 0.7 and the "mossy" variant generates with a structure integrity of 0.5, both regardless of size. Reduced structure integrity may also remove [[drowned]] from the structures.

{{Calculator|chunkbase|pois=Or|zoom=0.25}}

== Structure ==
{{main|Ocean Ruins/Structure}}
The shape and size of ocean ruins varies greatly, and they often generate together in groups to create ruined villages.

All but two of the structures contain a loot [[chest]] with loot inside. The chest contains loot for specifically either a small or large sized ocean ruin structure and may be buried under blocks such as [[gravel]] and [[sand]].

Cold ocean ruins are primarily composed of [[stone bricks]], [[gravel]], and [[suspicious gravel]], and they also contain [[prismarine]], [[sand]], [[magma block]]s, [[sea lantern]]s, [[polished granite]], [[glazed terracotta]], [[bricks]], [[planks]], [[cobblestone]], [[mossy cobblestone]], [[stone brick stairs]], [[obsidian]], or a [[chest]] with loot in it. Warm ocean ruins are primarily composed of [[sand]], [[sandstone]], and [[suspicious sand]], and they also contain [[polished granite]], [[polished diorite]], [[sea lantern]]s, [[magma block]]s, [[gravel]], [[terracotta]], [[sandstone stairs]], or a loot [[chest]].

Many of the structures spawn with drowned (usually one or two, though a few structures have three or four).

Natural ocean ruins generate following the rules above and may not exactly match the stored structures.

The structures below are located in the folder <code>[[client.jar]]/data/minecraft/structures/underwater_ruin</code>. The following is a complete table of the structures with their filenames, descriptions and what they consist of.

Each {{BlockLink|Structure Block|structure block}} indicates either a chest with random loot or the spawn location of a drowned [[mob]].

=== Cold ocean ruins ===

{| class="wikitable collapsible"
! scope="col" style="width: 200px" | Structure name
! scope="col" style="width: 300px" | Description
! scope="col" style="width: 250px" | Consists of
! scope="col" style="width: 250px" | Images
|-
|<code>underwater_ruin/big_brick_1</code><br><code>underwater_ruin/big_cracked_1</code><br><code>underwater_ruin/big_mossy_1</code>
|A chunk-sized structure with a mostly gravel floor and a large, multidimensional arch. These 3 generate as an integrated whole.
|
215–239 {{BlockLink|Gravel}}<br>
97 in total {{BlockLink|Stone Bricks}}, {{BlockLink|Cracked Stone Bricks|Cracked}}, {{BlockLink|Mossy Stone Bricks|Mossy}}<br>
8 {{BlockLink|Chiseled Stone Bricks}}<br>
4–5 {{BlockLink|Prismarine}} <br>
3–4 {{BlockLink|Magma Block}}<br>
1 {{BlockLink|Sand}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
1–2 {{EntityLink|Drowned}}
|
[[File:Ruin_Big_Brick_1.png|center|220px]]
|-
|<code>underwater_ruin/big_brick_2</code><br><code>underwater_ruin/big_cracked_2</code><br><code>underwater_ruin/big_mossy_2</code>
|A chunk-sized structure consisting of two connected rooms, one taller than the other. These 3 generate as an integrated whole.
|
209 in total {{BlockLink|Stone Bricks}}, {{BlockLink|Cracked Stone Bricks|Cracked}}, {{BlockLink|Mossy Stone Bricks|Mossy}}<br>
192–206 {{BlockLink|Gravel}}<br>
39 {{BlockLink|Chiseled Stone Bricks}}<br>
15 {{BlockLink|Polished Granite}}<br>
5–7 {{BlockLink|Prismarine}}<br>
4 {{BlockLink|Purple Glazed Terracotta}}<br>
2 {{BlockLink|Sea Lantern}}<br>
1–5 {{BlockLink|Magma Block}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
1–2 {{EntityLink|Drowned}}
|
[[File:Ruin_Big_Brick_2.png|center|220px]]
|-
|<code>underwater_ruin/big_brick_3</code><br><code>underwater_ruin/big_cracked_3</code><br><code>underwater_ruin/big_mossy_3</code>
|A chunk-sized structure consisting of two large unconnected rooms, one much taller than the other and having an open top. These 3 generate as an integrated whole.
|
301 in total {{BlockLink|Stone Bricks}}, {{BlockLink|Cracked Stone Bricks|Cracked}}, {{BlockLink|Mossy Stone Bricks|Mossy}}<br>
205–217 {{BlockLink|Gravel}}<br>
55 {{BlockLink|Chiseled Stone Bricks}}<br>
17 {{BlockLink|Polished Granite}}<br>
10 {{BlockLink|Bricks}}<br>
2–8 {{BlockLink|Sand}}<br>
2 {{BlockLink|Sea Lantern}}<br>
1–2 {{BlockLink|Magma Block}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
1–3 {{EntityLink|Drowned}}
|
[[File:Ruin_Big_Brick_3.png|center|220px]]
|-
|<code>underwater_ruin/big_brick_8</code><br><code>underwater_ruin/big_cracked_8</code><br><code>underwater_ruin/big_mossy_8</code>
|A chunk-sized structure with not much height, looks similar to a floorplan of a large building. Remnants of [[wood]]en floors are present. These 3 generate as an integrated whole.
|
210–224 {{BlockLink|Gravel}}<br>
88 in total {{BlockLink|Stone Bricks}}, {{BlockLink|Cracked Stone Bricks|Cracked}}, {{BlockLink|Mossy Stone Bricks|Mossy}}<br>
8–12 {{BlockLink|Sand}}<br>
9 {{BlockLink|Spruce Planks}}<br>
8 {{BlockLink|Dark Oak Planks}}<br>
3 {{BlockLink|Magma Block}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
1–2 {{EntityLink|Drowned}}
|
[[File:Ruin_Big_Brick_8.png|center|220px]]
|-
|<code>underwater_ruin/brick_1</code><br><code>underwater_ruin/cracked_1</code><br><code>underwater_ruin/mossy_1</code>
|A small building without a roof. These 3 generate as an integrated whole.
|
36–38 {{BlockLink|Gravel}}<br>
32–37 in total {{BlockLink|Stone Bricks}}, {{BlockLink|Cracked Stone Bricks|Cracked}}, {{BlockLink|Mossy Stone Bricks|Mossy}}<br>
17–19 {{BlockLink|Mossy Cobblestone}}<br>
1 {{BlockLink|Sea Lantern}}<br>
0–1 {{BlockLink|Magma Block}}<br>
0–1 {{BlockLink|Chest}} (random loot)<br>
0–1 {{EntityLink|Drowned}}
|
[[File:Ruin_Brick_1.png|center|220px]]
|-
|<code>underwater_ruin/brick_2</code><br><code>underwater_ruin/cracked_2</code><br><code>underwater_ruin/mossy_2</code>
|A small structure with not much height. Consists of randomly placed [[stone bricks]] and [[mossy cobblestone]]. These 3 generate as an integrated whole.
|
30–39 {{BlockLink|Gravel}}<br>
9 in total {{BlockLink|Stone Bricks}}, {{BlockLink|Cracked Stone Bricks|Cracked}}, {{BlockLink|Mossy Stone Bricks|Mossy}}<br>
6–10 {{BlockLink|Mossy Cobblestone}}<br>
2 {{BlockLink|Magma Block}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
0–2 {{EntityLink|Drowned}}
|
[[File:Ruin_Brick_2.png|center|220px]]
|-
|<code>underwater_ruin/brick_3</code><br><code>underwater_ruin/cracked_3</code><br><code>underwater_ruin/mossy_3</code>
|A small structure featuring a stone brick arch. These 3 generate as an integrated whole.
|
30–35 {{BlockLink|Gravel}}<br>
20–21 in total {{BlockLink|Stone Bricks}}, {{BlockLink|Cracked Stone Bricks|Cracked}}, {{BlockLink|Mossy Stone Bricks|Mossy}}<br>
2 {{BlockLink|Stone Brick Stairs}}<br>
1–2 {{BlockLink|Chiseled Stone Bricks}}<br>
1–2 {{BlockLink|Magma Block}}<br>
1–5 {{BlockLink|Sand}}<br>
1 {{BlockLink|Cobblestone}}<br>
0–1 {{BlockLink|Obsidian}}<br>
1 {{BlockLink|Chest}} (random loot)
|
[[File:Ruin_Brick_3.png|center|220px]]
|-
|<code>underwater_ruin/brick_4</code><br><code>underwater_ruin/cracked_4</code><br><code>underwater_ruin/mossy_4</code>
|A small structure featuring a small, domed building. These 3 generate as an integrated whole.
|
70–71 in total {{BlockLink|Stone Bricks}}, {{BlockLink|Cracked Stone Bricks|Cracked}}, {{BlockLink|Mossy Stone Bricks|Mossy}}<br>
27–35 {{BlockLink|Gravel}}<br>
3–6 {{BlockLink|Sand}}<br>
1–6 {{BlockLink|Dark Oak Planks}}<br>
0–4 {{BlockLink|Magma Block}}<br>
0–2 {{BlockLink|Spruce Planks}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
0–2 {{EntityLink|Drowned}}
|
[[File:Ruin_Brick_4.png|center|220px]]
|-
|<code>underwater_ruin/brick_5</code><br><code>underwater_ruin/cracked_5</code><br><code>underwater_ruin/mossy_5</code>
|A small structure with a small, cuboid building. These 3 generate as an integrated whole.
|
37–39 {{BlockLink|Gravel}}<br>
35 in total {{BlockLink|Stone Bricks}}, {{BlockLink|Cracked Stone Bricks|Cracked}}, {{BlockLink|Mossy Stone Bricks|Mossy}}<br>
9 {{BlockLink|Polished Granite}}<br>
8 {{BlockLink|Chiseled Stone Bricks}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
0–1 {{EntityLink|Drowned}}
|
[[File:Ruin_Brick_5.png|center|220px]]
|-
|<code>underwater_ruin/brick_6</code><br><code>underwater_ruin/cracked_6</code><br><code>underwater_ruin/mossy_6</code>
|A small structure that looks similar to a castle tower. These 3 generate as an integrated whole.
|
58 in total {{BlockLink|Stone Bricks}}, {{BlockLink|Cracked Stone Bricks|Cracked}}, {{BlockLink|Mossy Stone Bricks|Mossy}}<br>
41–43 {{BlockLink|Gravel}}<br>
24 {{BlockLink|Stone Brick Stairs}}<br>
2 {{BlockLink|Chiseled Stone Bricks}}<br>
2 {{BlockLink|Polished Granite}}<br>
0–3 {{BlockLink|Mossy Cobblestone}}<br>
0–1 {{BlockLink|Magma Block}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
0–4 {{EntityLink|Drowned}}
|
[[File:Ruin_Brick_6.png|center|220px]]
|-
|<code>underwater_ruin/brick_7</code><br><code>underwater_ruin/cracked_7</code><br><code>underwater_ruin/mossy_7</code>
|A small structure that resembles brick_5/cracked_5/mossy_5, although with a slightly taller roof. These 3 generate as an integrated whole.
|
40 in total {{BlockLink|Stone Bricks}}, {{BlockLink|Cracked Stone Bricks|Cracked}}, {{BlockLink|Mossy Stone Bricks|Mossy}}<br>
35 {{BlockLink|Gravel}}<br>
6 {{BlockLink|Mossy Cobblestone}}<br>
4 {{BlockLink|Chiseled Stone Bricks}}<br>
1 {{BlockLink|Magma Block}}<br>
1 {{BlockLink|Polished Granite}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
0–1 {{EntityLink|Drowned}}
|
[[File:Ruin_Brick_7.png|center|220px]]
|-
|<code>underwater_ruin/brick_8</code><br><code>underwater_ruin/cracked_8</code><br><code>underwater_ruin/mossy_8</code>
|A small structure that looks similar to an igloo, although made of stone materials. These 3 generate as an integrated whole.
|
41 in total {{BlockLink|Stone Bricks}}, {{BlockLink|Cracked Stone Bricks|Cracked}}, {{BlockLink|Mossy Stone Bricks|Mossy}}<br>
25–28 {{BlockLink|Gravel}}<br>
11 {{BlockLink|Chiseled Stone Bricks}}<br>
3–5 {{BlockLink|Dark Oak Planks}}<br>
1–2 {{BlockLink|Magma Block}}<br>
0–1 {{BlockLink|Obsidian}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
0–1 {{EntityLink|Drowned}}
|
[[File:Ruin_Brick_8.png|center|220px]]
|}

=== Warm ocean ruins ===

{| class="wikitable collapsible"
! scope="col" style="width: 200px" | Structure name
! scope="col" style="width: 300px" | Description
! scope="col" style="width: 250px" | Consists of
! scope="col" style="width: 250px" | Images
|-
|<code>underwater_ruin/big_warm_4</code>
|A chunk-sized structure featuring a large [[sandstone]] arch.
|
220 {{BlockLink|Sand}}<br>
152 {{BlockLink|Cut Sandstone}}<br>
24 {{BlockLink|Polished Granite}}<br>
18 {{BlockLink|Chiseled Sandstone}}<br>
4 {{BlockLink|Sea Lantern}}<br>
3 {{BlockLink|Magma Block}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
2 {{EntityLink|Drowned}}
|
[[File:Ruin_Big_Warm_4.png|center|220px]]
|-
|<code>underwater_ruin/big_warm_5</code>
|A chunk-sized structure with a tall tower in the center. It looks similar to a fountain.
|
222 {{BlockLink|Sand}}<br>
43 {{BlockLink|Cut Sandstone}}<br>
12 {{BlockLink|Sandstone}}<br>
8 {{BlockLink|Polished Granite}}<br>
5 {{BlockLink|Magma Block}}<br>
4 {{BlockLink|Polished Diorite}}<br>
2 {{BlockLink|Sea Lantern}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
4 {{EntityLink|Drowned}}
|
[[File:Ruin_Big_Warm_5.png|center|220px]]
|-
|<code>underwater_ruin/big_warm_6</code>
|A chunk-sized structure featuring 4 sandstone arches.
|
219 {{BlockLink|Sand}}<br>
129 {{BlockLink|Cut Sandstone}}<br>
4 {{BlockLink|Chiseled Sandstone}}<br>
4 {{BlockLink|Magma Block}}<br>
2 {{BlockLink|Sandstone}}<br>
2 {{BlockLink|Sea Lantern}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
2 {{EntityLink|Drowned}}
|
[[File:Ruin_Big_Warm_6.png|center|220px]]
|-
|<code>underwater_ruin/big_warm_7</code>
|A chunk-sized structure with an open sandstone dome.
|
202 {{BlockLink|Sand}}<br>
100 {{BlockLink|Cut Sandstone}}<br>
24 {{BlockLink|Gravel}}<br>
8 {{BlockLink|Chiseled Sandstone}}<br>
4 {{BlockLink|Polished Granite}}<br>
2 {{BlockLink|Magma Block}}<br>
2 {{BlockLink|Sandstone}}<br>
1 {{BlockLink|Sea Lantern}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
2 {{EntityLink|Drowned}}
|
[[File:Ruin_Big_Warm_7.png|center|220px]]
|-
|<code>underwater_ruin/warm_1</code>
|A small structure with an open dome. Looks like a smaller version of big_warm_7.
|
75 {{BlockLink|Cut Sandstone}}<br>
47 {{BlockLink|Sand}}<br>
7 {{BlockLink|Polished Granite}}<br>
1 {{BlockLink|Chest}} (random loot)
|
[[File:Ruin_Warm_1.png|center|220px]]
|-
|<code>underwater_ruin/warm_2</code>
|A small hut with a large opening in the front.
|
42 {{BlockLink|Sand}}<br>
36 {{BlockLink|Cut Sandstone}}<br>
2 {{BlockLink|Light Blue Terracotta}}<br>
2 {{BlockLink|Polished Granite}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
2 {{EntityLink|Drowned}}
|
[[File:Ruin_Warm_2.png|center|220px]]
|-
|<code>underwater_ruin/warm_3</code>
|A small hut that has an entrance on all sides.
|
36 {{BlockLink|Sand}}<br>
24 {{BlockLink|Cut Sandstone}}<br>
13 {{BlockLink|Polished Granite}}<br>
2 {{BlockLink|Magma Block}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
1 {{EntityLink|Drowned}}
|
[[File:Ruin_Warm_3.png|center|220px]]
|-
|<code>underwater_ruin/warm_4</code>
|A small structure featuring two small arches.
|
42 {{BlockLink|Sand}}<br>
28 {{BlockLink|Cut Sandstone}}<br>
10 {{BlockLink|Sandstone Stairs}}<br>
2 {{BlockLink|Chiseled Sandstone}}<br>
1 {{BlockLink|Magma Block}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
1 {{EntityLink|Drowned}}
|
[[File:Ruin_Warm_4.png|center|220px]]
|-
|<code>underwater_ruin/warm_5</code>
|A small structure that is essentially a roof with multiple supports.
|
37 {{BlockLink|Sand}}<br>
34 {{BlockLink|Cut Sandstone}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
1 {{EntityLink|Drowned}}
|
[[File:Ruin_Warm_5.png|center|220px]]
|-
|<code>underwater_ruin/warm_6</code>
|A small hut that looks similar to the ruin5 series, although made of sand materials. It is filled with sand and the entrance is blocked off.
|
48 {{BlockLink|Sand}}<br>
39 {{BlockLink|Cut Sandstone}}<br>
4 {{BlockLink|Light Blue Terracotta}}<br>
1 {{BlockLink|Magma Block}}<br>
1 {{BlockLink|Chest}} (random loot)
|
[[File:Ruin_Warm_6.png|center|220px]]
|-
|<code>underwater_ruin/warm_7</code>
|A small structure that looks similar to the ruin2 series, although made of sand materials.
|
34 {{BlockLink|Sand}}<br>
6 {{BlockLink|Cut Sandstone}}<br>
3 {{BlockLink|Polished Granite}}<br>
1 {{BlockLink|Chest}} (random loot)
|
[[File:Ruin_Warm_7.png|center|220px]]
|-
|<code>underwater_ruin/warm_8</code>
|A thin wall with multiple "windows". Appears to be a miniature cross section of big_warm_4.
|
56 {{BlockLink|Sand}}<br>
19 {{BlockLink|Cut Sandstone}}<br>
5 {{BlockLink|Magma Block}}<br>
4 {{BlockLink|Sandstone Stairs}}<br>
1 {{BlockLink|Chest}} (random loot)<br>
1 {{EntityLink|Drowned}}
|
[[File:Ruin_Warm_8.png|center|220px]]
|}

== Loot ==
{{See also|Chest loot}}
{{LootChest|underwater-ruin-big}}
{{LootChest|underwater-ruin-small}}
{{LootChest|brushable-cold-ocean-ruins}}
{{LootChest|brushable-warm-ocean-ruins}}
{{notelist}}

== Data values ==
=== ID ===
{{el|je}}:
{{ID table
|edition=java
|firstcolumnname=Structure type
|displayname=Ocean Ruin
|spritetype=env
|nameid=ocean_ruin
|foot=1}}
{{ID table
|edition=java
|firstcolumnname=Structure
|displayname=Cold Ocean Ruin
|spritename=ocean-ruin
|spritetype=env
|nameid=ocean_ruin_cold}}
{{ID table
|displayname=Warm Ocean Ruin
|spritename=ocean-ruin
|spritetype=env
|nameid=ocean_ruin_warm
|foot=1}}

{{el|be}}:
{{ID table
|edition=bedrock
|firstcolumnname=Structure
|generatetranslationkeys=y
|displayname=Ocean Ruins
|spritetype=env
|nameid=ruins
|translationkey=feature.ruins
|foot=1}}

=== Config ===
{{el|java}}:
{{/Config}}

== Achievements ==
{{load achievements|Atlantis?}}

== History ==
[[File:Turtle first screenshot.jpg|thumb|The first official image of underwater ruins.]]
[[File:Turtle Structure.png|thumb|The same image, brightened for clarity.]]

{{HistoryTable
|{{HistoryLine|java}}
|{{HistoryLine||December 27, 2017|link=https://minecraft.net/article/new-mob-approaches|A picture was released on Minecraft.net, which shows a faint underwater ruins structure in the top right corner, more visible when the image is brightened.}}
|{{HistoryLine||February 15, 2018|link=https://www.instagram.com/p/BfOVzs6D5gw|Minecraft's [[wikipedia:Instagram|Instagram]] account posted a video clip showing the underwater ruins that were to be added in the [[Update Aquatic]].}}
|{{HistoryLine||1.13|dev=18w09a|Added underwater ruins. They are found commonly.}}
|{{HistoryLine|||dev=18w10a|[[Buried treasure explorer map]]s now generate in the chests of underwater ruins.}}
|{{HistoryLine|||dev=18w16a|[[Drowned]] now spawn in underwater ruins.}}
|{{HistoryLine||1.16|dev=20w06a|Underwater ruins are much less common.}}
|{{HistoryLine||1.20|dev=23w12a|Underwater ruins now generate with [[suspicious sand]] and [[suspicious gravel]], depending on whether the ruins are cold or warm.}}
|{{HistoryLine|bedrock}}
|{{HistoryLine||1.4.0|dev=beta 1.2.20.1|Added underwater ruins.}}
|{{HistoryLine||1.19.80|exp=Next Major Update|dev=Preview 1.19.80.21|Underwater ruins now generate with [[suspicious sand]] and [[suspicious gravel]], depending on whether the ruins are cold or warm.}}
|{{HistoryLine|console}}
|{{HistoryLine||xbox=TU69|ps3=1.76|psvita=1.76|ps4=1.76|wiiu=Patch 38|Added underwater ruins.}}
|{{HistoryLine|education}}
|{{HistoryLine||1.4.0|Added underwater ruins.}}
}}

== Issues ==
{{Issue list}}

== Trivia ==
[[File:Land ruin.png|thumb|An ocean ruin {{in|be}} that generated completely on land. The [[water]] block above it that has not been updated.]]
[[File:Land ruin Java.png|thumb|An ocean ruin {{in|je}} that also generated completely on land. The loot chest is not waterlogged and does not have a water block on top of it.]]
* {{IN|be}}, ocean ruins generate with approximately equal spacing in the X and Z directions.
* {{IN|be}}, the loot chest of ocean ruins generates with a water block above it.<ref>{{bug|MCPE-179473||Ocean ruins generated on land have a water source above the chest}}</ref> This can be seen in the first image. {{IN|je}}, this is not the case, according to the second picture.<ref>{{bug|MC-136156|||Invalid}}</ref>

{{-}}

== Gallery ==
=== Screenshots ===
<gallery>
Underwater Ruins.png|Parts of a larger ruin peek out of the seabed.
Small underwater ruined village.png|An underwater ruined village.
Inside a ruined building.png|A [[chest]] found inside a larger building with multiple rooms.
Ruins generated with Prismarine blocks.png|Ruins generated beside a [[badlands]].
Underwater ruins Lukewarm Ocean.png|Small ocean ruins generated in a Lukewarm Ocean.
Hidden Chest in Ruins.png|A chest located in an ocean ruins building, that is hidden by a block, viewed in [[spectator]] mode.
Underwater-ruins-screenshot.jpg|Another screenshot of an ocean ruins structure.
Coral reef at night.png|Underwater ruins generated within a coral reef.
Underwater Ruins with Drowned.png|A ruined village inhabited by [[drowned]].
Drowned spawned in a stuck position.png|The [[drowned]] can sometimes spawn in positions that they cannot get out of.
LadyAgnes Ocean Ruins 1.jpg|An ocean ruin next to an underwater ravine.
LadyAgnes Ocean Ruins 2.jpg|An ocean ruin at the surface of the ocean.
Big cracked 1.png|A large underwater ruin structure.
A ruined village partially generated on land.png|A ruined village partially generated on land.
Underwater ruins on island.png|Ruins generated on an island.
Ruin on land.png|An ocean ruin completely generated on a hill near the water.
Underwater ruins on the outside of Frozen ocean and Beach.png|A ruined village generated on frozen ocean and beaches.
Land ruin.png|Ruins generated on land in ''[[Bedrock Edition]]'', with water generated above the chest.
Mountain Ruin.png|Part of a ruin generated on a windswept hills. The rest of the ruins are in the ocean below. A [[village]] can be seen as well.
Land ruin Java.png|A ruined village that generated on land in ''[[Java Edition]]''. A loot chest is visible and is not waterlogged, unlike in ''Bedrock Edition''.
Landruins.png|Underwater ruins generated on land.
Ocean ruin breaks monument.png|Underwater ruins generated intersecting an ocean monument, exposing the treasure room.
Double chest ruin.png|Underwater ruins with two chests, with a couple of blocks separating them.
OceanRuinsBeach.png|An ocean ruin generated on a beach, complete with some unlucky drowned.
Ocean ruins chests.png|2 ocean ruins chests generated on top of each other.
Land ruins.png|Ocean ruins found on land.
Ruins in village.png|Ocean ruins generated in a [[village]].
Ruinsonland.png|Ocean ruins on a [[mushroom island]] shore.
</gallery>

=== In other media ===
<gallery>
Sunny Finding the Sniffer Egg.png|Sunny finding the [[sniffer egg]] in an ocean ruin and [[swimming]] away.
</gallery>

== References ==
{{reflist}}

== Navigation ==
{{Navbox generated structures}}

[[de:Ozeanruine]]
[[es:Ruinas oceánicas]]
[[fr:Ruines sous-marines]]
[[it:Rovine oceaniche]]
[[ja:海底遺跡]]
[[ko:바다 폐허]]
[[pl:Podwodne ruiny]]
[[pt:Ruína oceânica]]
[[ru:Подводные руины]]
[[zh:海底废墟]]