Mushroom islands are rare to come across but they are definitely a biome which attract most people’s interest. In this seed you will be spawning on a normal grass island which is located very near a medium-sized mushroom island.
Found by: jhonkuromaro
Go left from spawn over the water. You can go there either by swimming or get some wood from the islands you spawn at and craft a boat.
You won’t have to go long to reach the mushroom island.
It’s a medium-sized island. The terrain is mostly flat but there’s also a larger mushroom mountain on one side of the island.
The mushrooms can be used as the base when building a new house. Here’s an example how such a house can look like. It doesn’t provide much space but it gives you a shelter for the night.