Savana swamp

Minecraft Seed: 2264678838602569230

I randomly found this in my new Minecraft world.
I travelled a bit and at the coordinates 42/80/-1160 where I saw a large mountain with a mangrove swamp. It was a Mangrove Swamp in a Windswept Savana. Two of the rarest biomes in Minecraft (Mangrove Swamp: 0.39%, Windswept Savanna: 0.19%.)

At the edge of this beautiful spot is a sparse jungle.
I think this is the rarest thing I have ever seen in Minecraft.

The exact coordinates are: -128/202/-1310.
Have fun with the seed xD.