Welcome2Minecraft blockBreakerMinecraft 1.5 - 1.5.2 Seed
You start of 10 meters below water surface.
Also works with 1.
Seed Code: Welcome2Minecraft blockBreaker
Spawn points
X: -728 / Y: 53 / Z: -645
Locations

X: -792 / Y: 64 / Z: -800
You have to swim ~165 meters to closest island, this island have no trees.
I found a mass of land (not sure if its an island, but if it is, its huge!)
x: -872
y: 63
z: -205
You are speaking of the giant snow biome? It takes a freakin halfday to swim over there! There is a gigantic grass/desert biome on
x: -114
y: 64
z: -1157
x:862
y:65
z:-2200
A taiga biome with a ravine close to it ,
x:819
y:48
z:-2145
Cave spider spawner ( mineshaft )
I recommend this in Creative mode cheats. If you find the thing /gamemode 0 then because its in the sea.
Stuff i found in the seed:
Stronghold thats just small: X:-768 Z:-697
it's fake i actually tried Welcome2Minecraft blockBreaker
it doesnt work
Check your minecraft version. It is working.