Zunesha

Debut: Chapter 802; Episode 751.

Zunesha has the appearance of a large elephant, comparable to an island in sheer scale; its legs are disproportionate and very long, so it can walk on the ocean floor while the rest of its body remains above the water. The legs have two joints. However, he has relatively small eyes that have sunk deep into their sockets, barely visible most of the time and giving the impression that he has no eyes at all. His skin was very wrinkled, reflecting his old age, and his ears were ragged and frayed at the edges.

(Source: One Piece Wikia)