Tananda Bay was a body of water on Ajilon Prime with at least one peninsula jutting into it. The Federation had a base there during the Federation-Klingon War.
In 2256, this bay was mentioned with the star Ajilon's name on the star chart "Alpha/Beta Quadrant Overview" in the ready room aboard the USS Discovery. (DIS: "Magic to Make the Sanest Man Go Mad")
A hopper was set to take medical personnel and their patients from an underground location where Kirby, Kalandra, Jake Sisko, and Julian Bashir were stationed to the base at Tananda Bay in 2373. The tunnel from the underground location to the surface was over two kilometers long, and they had over seventy patients at the time. A security detail was sent to defend the medical teams long enough for them to move the patients. (DS9: "Nor the Battle to the Strong")
Star Trek Encyclopedia uses the spelling "Tanandra".
It is possible that the colony on Ajilon Prime was named Tananda Bay.