Been cruising around Adventure World, and been finding some pretty interesting stuff.

A bunch of sponges in the ocean had some unintended consequences, apparently. For anyone else who finds this spot it's a great spot to farm ink.

Found a motherlode underground. Coal, iron, gold, emerald, pretty much everything short of diamonds and lapis lazuli. I actually had to come up because my inventory got maxed out even after dumping some useless mob drops (did obtain an Ender Pearl, though)