Reef? What's this about a reef?

I’ve seen several people mention that there is a reef, usually in the context of where you can find great whites and whale sharks.

I thought there were only reefs around islands. Is there a reef out at sea that I’ve just never seen?

No theres only reefs around each island and just voids of nothing inbetween. Great whites and whale sharks are typically found in deep water around the outskirts of the map :ok_hand:

That’s what I thought. But had never seen it beyond islands.