just wandering if anyone has seen, or has, a mod that adds a small cave outside balmora. it's half full of water and it's described as "for argonians."

It's called Argonian Shelter.

What genre does it fall under? Housing? Misc? It would make it a bit easier for me to search for it.

It's a house and it's really good

Hmmm...nothing came up on the first search, never heard of this one before. But if I come across it you will be the first to know.

No idea where you found it originally? If it was a private site, I would not hold much hope, so many of those old mod sites have gone under.

it was morrowind summit

I searched there. The closest one I could find was a cave next to the pawn shop in Balmora.

However, mods disappear off that site as well.

Haha I can testify to that...