feels like mojang hired some actual geologist or someone who has seen a cave at least once in their life to model the new cavegen. It's making some pretty realistic geological faults and even karst-like formations, sinkholes etc.
before it was just "worm eating rock, lol"
before it was just "worm eating rock, lol"
@piggo Sometimes those cave networks impress me. Not sure if it's Minecraft itself or one of the gajillion mods tho.
@trinsec "caves and cliffs" finally made underground exploration worthwhile again imo. Especially these humongous caves with terraced lakes are just 
