Tested On:1.16 (Nether Update).
Minecraft Edition:Bedrock
Biomes:Ocean, Beach, Island.
Natural Structures:Coral Reefs, Ravine.
Generated Structures:Ocean Monument, Ocean Ruin(s), Shipwreck.
*the number of biomes, natural structures, and generated structures will increase as you explore the world (obviously).
Descriptions, Description:

In this seed, you will spawn on an island that is surrounded by Coral Reefs. Near the island, you can find 4 Shipwrecks, 2 Ocean Monuments, 3 Ocean Ruins. See the details down below.

I will continue to update this seed if a new version of Minecraft coming out. So stay tuned if you are interested in this seed.

Coordinates, Coordinates:

World Spawn Point XYZ: 1968 65 0
*may not accurate

Ocean Monument #1 XYZ: 1878 61 183

Ocean Monument #2 XYZ: 2200 61 70

Ocean Ruins #1 XYZ: 1959 68 16

Ocean Ruins #2 + Shipwreck #1 XYZ: 1781 33 228

Ocean Ruins #3 XYZ: 1943 37 -150

Shipwreck #2 XYZ: 1955 35 -125

Shipwreck #3 XYZ: 2110 33 36

Shipwreck #4 XYZ: 2107 33 169

Important Notes., Important Notes:

The rest of the Ruins of Ocean Ruins #1 located underwater (collapsed/surrounded with the Coral Reefs).

All the generated structures locations are drawn in the structure map below.

Screenshots, Screenshots:
Structure Map that shows the location of Generated Structures

The Structure Map. It shows the location of each Generated Structures.

Survival Island

The Island where you spawn. And look! there are Ocean Ruins over there.

Shipwreck collapsed with Ocean Ruins

The Shipwreck #1 collapsed with Ocean Ruins #2 (located in the west from the Ocean Monument #1).

Ocean Ruin surrounded by Coral Reefs

The rest of the Ocean Ruins #1 are located underwater surrounded by Coral Reefs.

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