Hot Springs Over Sulfur Mounds.

Lukewarm community take here, but over these sulfur mounds that act like the Azalea Trees for lush caves but for the sulfur caves, you could have there be a few small hot springs that poured out from the sulfur caves.

there's more you can expand on that in terms of generation but then it could start to get into (insert scary 1.18/caves and cliffs here), though I'll still say my idea on such.
The hot springs could blend/flow into rivers, enhancing the water table/cycle of the Minecraft world. 'rain' rains, ends up in rivers or in the ground, which ither ends up stuck in the dripstone caves or gets sent out from the sulfur caves, and then ends up in rivers, then from rivers it goes to the ocean and (insert keyboard mashing)

- G-sided Dice