If this were in I would like to see something like a buoyancy spell like i mentioned in the poll above. Walking on the ocean/river/lake floor could be pretty cool, but having to leave your equipment on the water's shore might prove dangerous (with radiant story, someone might just steal your stuff)
now i know some of you are gonna say (there's magic/dragons so things don't have to behave realistically), but lots of people (as well as i) simply disagree with this argument. what I want to hear is whether people think this would ruin the game, make swimming too unappealing, or if people want it and whether or not it would add to immersion.
Any building on, or picking apart of this idea is what i want to see to make my opinion on the matter.
Also, I know this is most likely either in the game already or it's not, so this is all purely speculative/ for fun.