An unnamed Crest kayak is due to appear in Grand Theft Auto VI, shown in an official promotional screenshot of a man paddling an orange example down a waterway in Mount Kalaga National Park. The human-powered craft appears to be based on several Crescent Kayaks models, primarily the Splashback along with other 10-foot designs like the Ultralite and Primo.
Vehicle data via GTA Wiki (Fandom), CC BY-SA 3.0.