I live right near some Extreme Hills and they're pretty much the only good place close to my home for me to cave...
God, Extreme Hills biomes are the worst thing for getting lost in.
I wish I had somewhere else to cave but every other spot is sort of far off and I don't want to strip mine because that's incredibly boring. I think I might just need to set difficulty to Easy and get used to those stupid hills and caving altogether first(this is actually my first proper playthrough), maybe I'll even set up another camp there...
Emeralds are the coolest thing though! Relatively useless, but cool.
By the way, my computer runs Far render distance with Fancy graphics at 405 FPS(490 with Optifine added). Out of curiosity, can anyone on this forum top that?