8328561403859191866Minecraft 1.5 - 1.5.2 Seed
The spawn is average,
Seed Code: 8328561403859191866
Spawn points
Locations

X: -215 / Y: 102 / Z: 462
This is where the forest and mushroom biome meet.

X: -213 / Y: 69 / Z: 321
This is off one of the coasts. It is known that hostile mobs do not spawn here at night, even in the caves! However, dungeons can have monster spawners that still work!

X: -222 / Y: 64 / Z: 115
This contents of this bonus chest are a wooden axe, a wooden pickaxe, 7 oak wood, 3 wooden planks, 3 sticks, and 3 apples. I give this a 3/5 bonus chest.

X: -344 / Y: 66 / Z: 39
A zombie dungeon close to spawn. It has no opening, and the chest contents aren't the best, but it is easy to find. Use these coordinates to get to the hole that leads you down into the dungeon.

X: -238 / Y: 64 / Z: -311
Watch out for the forest fire from the lava lake!
Is anyone seeing the image of a spider dungeon as the photo of location 2? Apparently it's supposed to be a giant mushroom hill next to an ocean, which is why I had to expand the details of location 2. I don't know why it is displaying this other photo for me.
Awesome seed! It's also rare that you see a mushroom biome even come close to the shore!
pretty awesome seed
I turned on large biomes and spawned at -232/64/391. I heard skeletons first thing, so I dug straight down right where I was to find a spawner.
Hey really? what's inside?