Capable of deeds of great strength and courage / Great Warrior
Travels over a Vast Setting
Beowulf is the cousin to the king of the geese.
Beowulf displays his immense strength and courage by single-handedly fighting and defeating Grendel and his mother. He is a great warrior because he fights in the war with utmost determination.
Beowulf and his army traveled to Herot via ship. It was a tremendous journey. This shows how he traveled over a vast setting, and did not just stay in one place, thereby satisfying the epic hero characteristic requirement.
Faces Supernatural Foes
Beowulf is highly regarded as one of Geatland's strongest and bravest young warriors. Even his army has confidence in the fact that he can singlehandedly defeat Grendel and his mother. This shows how he was recognized by his home country as a great heroic person.
Even though he has immense pride, Beowulf never brags or gloats about defeating Grendel or his mother. Instead, he insists that he was fighting for the people of Herot. He emphasized that Grendel's actions were unjust and needed to be stopped. This shows how we has never a braggart.
Beowulf faced both Grendel and his mother, who were both supernatural beings that had extraordinary powers and strength. This is why Beowulf is an epic: he fights something mere mortals cannot battle.