Super small ocean biomes

You spawn in a mangrove svamp but see a bamboo jungle right next to you, literally 2 blocks away. There is ocean pretty much all around the swamp/jungle. There is a weird, small dark forest super near, on its on island in the ocean. If you follow that island, you come to a one-chunk-sized old growth birch forest, with ONE birch. Past that chunk is a small windswept savanna biome in the ocean (but mostly flying above the ocean).

There is also a plains village that is located in plains/savanna/swamp near spawn.