The "Narwhal-Class" refers to a class of submarines used by the Royal Canadian Navy. These submarines are designed for various missions, including surveillance and reconnaissance, and are known for their unique capabilities in Arctic waters. Named after the narwhal, a marine mammal known for its long, spiral tusk, the Narwhal-Class submarines are equipped with advanced technology to operate in challenging environments. They play a crucial role in Canada's maritime security and sovereignty, particularly in the northern regions.