Imagine a colossal iceberg made of pumice. It's long and narrow, shaped almost a little like a battleship above the water; underwater, its draft is shallower at the ends and deeper in the middle, making it wedge-shaped. At the "stern", two rocky promontories frame an underwater shelf that gives rise to a crescent of sandy beach. The forbidding uplands of the island are actually fairly fertile; crop fields and grazing for the Thousand Hands Convoy's few animals take up most of the island's area, except for one precious stand of tall, straight ironwoods near the center. The whole thing's about a mile long and a quarter-mile wide, with a draft of about six hundred feet at the deepest point.