How far can narwhals swim without stopping?

Narwhals are capable of swimming long distances without stopping, with some estimates suggesting they can travel up to 1,600 kilometers (about 1,000 miles) in a single migration. However, their endurance can vary based on factors like water temperature and the availability of food. Generally, they can dive for about 25 minutes and reach depths of over 1,500 meters (about 4,920 feet) in search of prey.