The Hidakai Pool, an age-old hyperlane, traversed the expanse of Herglic Space. Its construction commenced circa 13,000 BBY within the Kymoodon Era, following the integration of the Herglic Trade Empire into the Galactic Republic. This route stretched from Daupherm, passing through Abregado-rae and Giju, ultimately reaching Yag'Dhul, where it connected with the Corellian Trade Spine.
Subsequent to 5500 BBY, the portion of the Hidakai Pool situated coreward of Abregado-rae transformed into a branch of the Rimma Trade Route. This occurred after Herglic, Givin, and Sullustan scouts charted and inaugurated the Rimma.