It’s been ages since I’ve played Minecraft, but my favorite and most frustrating base was one of those guardian temples in the ocean. The kicker was that it was a fresh server, and my buddy and I tackled that as our starter base. No armor, stone tools… Just a few stacks of sand and some doors to drain it, and lots - LOTS - of dying.

When we finally got that thing drained and hollowed out… so satisfying!