In this seed you will spawn in a forest. Assuming you are in create, fly up high (about 20 blocks up) in the sky and then move straight forward. Soon you will notice a medium sized "mushroom" looking mountain and/or overhang. The reason why we choose to describe it as a mushroom is because its shape.
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If you climb the "mushroom" you will notice there is a small tunnel leading downward to a terrace-like place. Here would be a suitable place to a shelter.
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Seed: pocket edition