Lake Rathetear. There are probably better lakes, but this is the first original one that came to mind .
Make a pair of ducks. Write it into the lore that they're estranged duck brothers. The good duck will be in Lake Rathe. The evil zombie duck will be in Innothule Swamp. Or vice versa. And give them flying kick.
A duck walks into a bar. He asks the bartender, "Do you have any crackers?" The bartender says, "No we don't have any crackers." So the duck leaves. A few days later, the duck walks into the same bar. He says, "Hey bartender, did you get any crackers?" The bartender shouts, "No I didn't get any crackers." So the duck leaves. Again, a few days later, the duck walks into that same bar, and says to the bartender, "Hey, you got any crackers yet?" Furious, the bartender shouts at the Duck, "If you ask me one more time if we have crackers, I'm going to NAIL YOUR FEET TO THE FLOOR!" So the duck hurries out. Shortly after, the duck walks back into the bar, and says, "Hey, bartender, do you have any nails?" Confused, the bartender replies, "What? No I don't have any nails." To which the duck replies, "Great, do you have any crackers?"
Winter's Deep*, The Vasty Deep, Lake Rahetear, Wayunder Lake, The Nest, Lake Neriuss, Oasis of Marr, Dagnar's Cauldron, Elizerian Lake, the Ink Sea (it's all inland so keeping it), Lake of Ill Omen, Dragon Drool, Lake of Dismay Winter's Deep is the largest lake in Antonica.
In the south-east corner of Beasts' Domain, on the continent of Alaris, is an in-land lake. There are lots of giant creatures in the zone, so maybe a giant duck may fit in there. This is technically on Norrath but populated by creatures that are refugees from the original planet of the Alarans.
