A wide bay cutting into the northeastern coast of the Celedrim Plains, Nalvrayukuk freezes solid from early autumn through late spring, its surface a fractured expanse of pressure ridges and wind-scoured ice. The name comes from the Zwaeron tongue and translates roughly as "the bay that does not welcome"—a reference to the conditions that make sea approach nearly impossible for most of the year.
In the brief open-water season the bay's waters run swift and cold, fed by glacier melt from the ranges above. Coastal hunters use the rocky headlands as seal-hunting grounds during this window, and the occasional trading vessel calls at the ice-free margins. The rest of the year the bay belongs to wind and ice.