I'm a pretty avid explorer in Minecraft, and that's been the case since I started playing in early 2012. But, if there's one place I actively avoid visiting, it's the vast expanse of ocean you always come across in the world.
No matter how hard I try, it gets to a certain point where I just cannot go on anymore and turn back to my base. I can blame my depleting oxygen and inability to ever craft water breathing potions, but it's actually because it just feels long and unrewarding. Even when I know there's a shipwreck or temple, I will simply not go on the expedition.
