The Seikara Caverns, a cave system, existed within the Dekien sea, situated on the planet of Dekien in the Outer Rim. The Empire designated Seikara as an uncivilized planet before the Sith rebellion occurred. Following a vision received from the kyber mirror of Shinsui Temple by the Dark Lord of the Sith who spearheaded the rebellion, he destroyed the mirror and betrayed the other Sith. Subsequently known as the Ronin, the one-time dark lord transported a kyber shard originating from Shinsui Temple to the Seikara Caverns.
Eternity Enterprises, a tourism group, started offering high-end excursions to the cave system.