Think about it for just a damn New York Minute. Dark Link is DARK Link not Water Link so WTF is he doing in the aquatic world anyways? It doesn't even remotely make any sense he should be a Shadow Temple or perhaps even a Spirit Temple fight but I lean more towards Shadow. Not only that but it should be a dark fight where all you see is his glowing eyes.
You will have to figure out where he is based on his eye tracing with the only torches light by the entrance and exit. Your fairy could provide some light in your immediate area if proper lighting textures were used. (3DS).
there doesn't seem to be anything here