| 10 - 35 | Western Aryth Ocean
| 10 - 35 | The Aryth Ocean
| 15 - 50 | Waters of the Deep
| 10 - 51 | The Sea of Despair
| 20 - 30 | Ship Graveyard
| 30 - 51 | The Coral Head
| 35 - 51 | Coral Palace
| 40 - 51 | Kuo-Toa Lair
40 - 51 | The Underdark Sea
| All | The Dragon Sea

Ruins of the deep too, which wasn't in the area list in the by level Wiki for some reason. Excellent high level ranking area. If you are thinking of a water shifter, swamps will also do, but I didn't list them here. Rivers Nanthor and Voralia's tears also have something to kill at low levels.