Geysers , hotsprings ,thermal areas

If that's what the 'Trio' want to add into the game then I'd be all so happy with them appearing on warm mountain areas. The 'hotsprings' that is. I wouldn't recommend adding 1-2 in every world, just rare enough as those mesa & ice spiked biomes in Minecraft. I need an example and Minecraft is the 'best' one so far. Would be amusing to have a hot spring in cold mountains if we're going to have 'environmental diseases', or whatever Red was planning with diseases & illnesses. Being near these should help with heat.

Given that there is lava beneath the earth in game... then for sure these would be great to see. They should be dangers but also possible opportunities.