So I was venturing in Leafre's new server and came across a huge amount of animals in a lake (Credit to Nico11ish for finding it)

Underwater cave 1.jpg

In the middle of the lake with the heaping amounts of animals there was a hole in the ground, so I checked it out.

Underwater cave 2.jpg

There was a cave under the water, and it didn't take long for me to find this

Underwater cave 3.jpg

And this

Underwater cave 3.5.jpg

and, like any epically awesome cave, this

Underwater cave 4.jpg

'course, then I died here trying to get redstone, and I fell into lava (Twice, once while trying to get it, again when i was trying to recover the diamonds) The diamonds melted D: