Minecraft mushroom island seed 1.8.3 with a shore out in the ocean
Nearby is a fun mushroom island biome over at x-280 z125. It's pretty fun to explore with a bunch of cubbyholes and maybe some hidden caves. There's even a cool shore like feature where the water isn't very deep on the shores off one side of the mushroom island seed.
The seed is: 3352196008653124127