Situated on the water-covered planet of Dac, close to the settlement of Orotoru G'am, existed the Grand Reefs, expansive formations of coral. The area above the water was characterized by sizable rocks and adorned with towering sculptures representing the Mon Calamari species. Furthermore, a podracing circuit was located there.
The cubicle worm, native to Dac, resided in this area.
In the year 24 BBY, Mars Guo was considered the frontrunner on the track. The Grand Reefs race represented the final of the three podraces held on Dac, and it was the second race in the Hutt Championships series.