In this seed you will spawn in a pine forest. Turn completely around and in a short while take a left and you should reach a little hill. Make your way to the top of the hill and from there you should be able to find the extreme hills.
There are a couple of smaller floating islands but most of the other mountains are just huge and unrealistic overhangs. It’s a great seed for survival as it got many challengable mountains to climb and epic areas to explore.