The GulfMinecraft 1.7.2 - 1.7.9 Seed
I traveled not to far after generating this awesome world and I saw a mountain that went above the clouds.
Seed Code: -1800136319
X: 175 / Y: 92 / Z: 88
This was taken across from the mountains to give a greater perspective of the island. It is also a great spot to build a house.