Final answer:
Durmstrang Institute students arrive at Hogwarts in a magical ship that surfaces from the Black Lake, which is a departure from the Hogwarts Express used by Hogwarts students.
Step-by-step explanation:
The Durmstrang Institute students arrive at Hogwarts in a ship that emerges from the depths of the Black Lake. This method of transportation elegantly captures the mystery and tradition of the Durmstrang Institute, a school known for its secrecy and its emphasis on the Dark Arts. Unlike Hogwarts students who travel by the Hogwarts Express, Durmstrang students make their dramatic entrance differently, adding to the excitement of the Triwizard Tournament depicted in 'Harry Potter and the Goblet of Fire'.