I was out exploring today, and I think I've come across the best thing the terrain generator has ever done. At first, as I was exploring, I had to traverse a huge ocean that seemed to never end. I thought something was wrong with the terrain generator as I wasn't seeing any land in any direction for quite awhile, until I came upon this:
Yes, that's quite the epic arch in the background, and here it is seen closer:
Kind of feels like a pirate cove.