Spawn: -8, -8
This one no longer spawns the igloo in the latest version of Minecraft.
This used to spawn you near an igloo complete with a cool hidden passage. Now it spawns you in the same geographical area, but instead of an igloo, you're left to fend for yourself.
The long, frozen river cuts through the area and serves as a great landmark for adventures, though., and you could build your own igloo to replace the one that's now missing.