Undersea Adventure Modules?

[Wolffenjugend]

There's also "Of Ships and Sea" by TSR, D&D 2E.

 

[Stormborn]

Don't have it infront of me to check specifics, but Penumbra's En Route II has sea oriented encounters, some of which are underwater, and can easily be worked into a campaign.

 

[caudor]

I'm working on an undersea mega-adventure (levels 1-9), but it'll be a few more months, yet.

Wow Aeolius, I'm excited to hear that. Starting at first level even...can't wait to see it!

The is also a Greyhawk trilogy of adventures I recall. I think one was called Sea of Blood or Night of the Shark. Features Sea Devils I think.

 

[Aeolius]

The is also a Greyhawk trilogy of adventures I recall.

As mine will be: "Turucambi", "The Sinking Isle", and "The Jungle of Lost Ships".