South Pole
From The Blockheads Wiki
The South Pole is a snowy, icy part of the world marked by a blue and white striped pole extending 16 blocks up and down to bedrock. Reaching this landmark earns the player the South Pole achievement. The South Pole is found by keep going right.
The pole itself is made of "background" blocks and can have oil lanterns, ladders, or other blocks placed on it.
<spoiler>The South Pole Boots of Speed can be found atop the pole.</spoiler>