Coastal Waverunners spend most of their time skimming the waves along the coast, snatching up their prey from the shallow waters. They have developed markings along the leading edges of their body that help disguise them as breaking waves. When they are not hunting, they enjoy playing among sand-dunes and shallow tide-pools. These dragons live in small but noisy rookeries. Some stories say Waverunners can fly for days on end without landing.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

Petri was hatched a dry land dragon, he disliked water and feared flying and for most of his time he stayed in the forest. However for reasons unknown the little Waverunner was spooked by something and surprising all, he took flight and landed on the sea. No one knows what caused this but since this Petri had turned into a dragon of his breed. Petri loves tide pools and playing in the sand. With Stellaluna's help, he usually makes small sand mounds that are decorated with bits of shell, seaweed, or coral. He and Stella also tend to eat together or share a fish between them. Petri is still easily nervous and frightened, but he's playful and is friendly, especially if tempted by food.