Love of exploration is a running trend in the family. Hightide followed suit, and even though he is a pegasus, he found himself more infatuated with the ocean than the sky. Because of this, when he reached adulthood, he signed up for the Equestrian Navy, which has both a nautical and aeronautical division. Either branch was open to him, but he decided to sign on with the surface fleet after he caught wind of a curious new machine called the submarine.