This seed spawns you on a tiny island in the middle of the ocean, but directly in front of you is a mushroom island. I’m sure if you travel around the ocean far enough, you can find more islands, but in this area, this mushroom island is your survival island. If you’re up for an underwater adventure, there are also two ocean monuments close by.
Minecraft PC 1.11 Seed: 1360525497449389751
The Mushroom Island
Mushroom islands are a rare biome that can be hard to find since they’re usually out in the ocean. They’re unique because of their purple ground and giant mushrooms all over.
The only mob that naturally spawns on these islands are mooshrooms. Not even hostile mobs like creepers or skeletons will spawn. That means any cave searching you do is safe unless you come across a dungeon with a monster spawner.
You don’t really have any building materials on this island, but at least you won’t starve thanks to the mushrooms. (And you won’t be murdered by monsters.)
The Ocean Monuments
Nearby underwater you can find two ocean monuments. These aren’t that exciting on survival mode because you need a lot of enchantments to explore them safely, but they’re still interesting. Having two of them so close together is rare too. (You can find them at 198 / 61 / -121 and 166 / 61 / 102.)
The entrance to the monuments is lit by arches on one side. Beware of the guardians surrounding and filling the monument. They will zap any player or squid that gets too close to their home. Inside of the monuments, there are also three elder guardians. (Like regular guardians but much larger.)
You can explore the many twisting and turning halls of the monument, and near the center, you’ll find a treasure room. It has a big pillar of dark prismarine that holds eight solid blocks of gold in the center.
Once you’ve enjoyed your survival mushroom island and ocean monuments, explore the rest of the seed and see if you can find any other rare structures!