No one has ever been known to successfully sail the Garbhodaka Ocean. Torrential tropical storms, crashing waves, and a host of waterbound monsters have proven too difficult for surface-dwellers to handle.
It is known, however, that some underwater kingdoms thrive at the ocean floor. Rasatala, the closest Triton city to the shoreline, has long been a trade partner of Ressaria's.
Underwater cave complexes dug out by Triton and Undine connecting the Garbhodaka Ocean with the Ghaggar-Hakra River have been credited as the cause of the warmer temperatures of the Ghaggar-Hakra River.