Massive Lush Cave

Found while exploring a seed I got from this sub, -123456793079414942

coords for the cave + mineshaft are -380, -26, -2124. Absolutely massive, still havent gone through the full thing myself yet. could not find the original sub post, so I posted separately. if not allowed, pls delete! entirely different section of the seed from the original so I wanted to share how cool this part is.