A cool seed for ocean survival that generates an island and two monuments right at the spawn point. You can find a lot of interesting loot, although there will not be a lot of materials for basic crafting in the beginning. If two monuments are not enough for you, then you can find another one, it is located at coordinates -750 ~ 50.
How to use Island and Two Monuments seed
Start the Singleplayer mode
Select ‘Create New World’
Then click on ‘More World Options…’
In the ‘Seed for the World generation’ field, enter -199402479460164806