The Snout of Omgar was once a peninsula, but upheaval wrought by the Spellplaque broke off the tip of the peninsula, creating an island separated from mainland Chult by a narrow strait. When the separation occurred, tortles living in the vicinity claimed the island as their domain. The strait provided a natural defense against aggressive mainland predators.

The tortles of the Snout are hospitable folk who like to hunt, catch fish, build things, and trade with visitors. Not long after the island was formed, a pirate ship captained by a cleric of the sea goddess Umberlee was caught in a typhoon and swept ashore. Tortles rescued the shipwrecked survivors and looked after them.

The captain impressed the tortles with her magic and told stories that painted Umberlee in a flattering light. In time, she persuaded them to raise a palace in her deity's honor. The cleric chose a mountainside overlooking the sea, and there were tortles spent a decade building Dangwaru, the Typhoon Palace, which secretly served as a temple of Umberlee. In return, the cleric and her followers left the tortles alone and were quiet neighbors.