Spawn aquatic beings in rivers
Currently the only place where you can find aquatic beings is the underwater cave. Can some of them appear in rivers?
Most unspoiled players will never see aquatic beings. And all rivers in adom are just... empty. Can at least turtles be added there? Seeing eels and sharks rarely would be cool as well.
Eels / sharks should immediately die from suffocation if teleported out from the river.