The same markings are seen just past the Water Nation's village, in the tunnel leading up to the main temple. The presence of a human or other entity with the marking of a Rider is required to activate the runes.
The nation's queen, Naga, had become the first of the nation's kind to form a bond with the two-legged kind in a contractual sense. A young elf, Arris, would become the first proclaimed dragon Rider for the Water Nation. Ever since this union, the territory shows signs of where the queen had carved out safe spaces, passageways, and other accommodations to preserve him in the harsh environment. The runes encountered on the way to the temple are one of Naga's many stepping stones to aid the young man.
Long after the Rider's passing, the runes are still active and present.
The territory is also littered with environments built for Arris's comfort and ability to stay underwater long-term. The Rider was able to breathe safely within the bounds of Naga's magic. There are pockets of vast plant life and dry spaces to allow for sleep, relaxation, and study.
The temple also hosts a gateway that allows for direct passage into Nightwing, accessible to Riders or Mages who may have been taught.
