My spawn point was at x:-569, z:-111 with no land in sight which kind of makes this a marginal seed for survival island IMHO. At least eh map will let you select an island and get coordinates.
Note the mushroom biome near x:-480, z:1120
This is a pretty famous seed. I’m not sure where I heard about it originally.
Edit: I found the reference to this: ColdChemical posted this as a comment on r/minecraftseeds. Either a joke or a confused post but a great seed in any case!
seed: dovahkiin
Dead Calm
Posted by beschizza on r/minecraftseeds.
As he says:
Correct me if I’m wrong but this map has more mushrooms than trees. Spawn was on land at: x:-838, z:720.
seed: Dead Calm