Final answer:
The kenning that appears in lines 59-60 is 'Whale-road', which refers to the sea as a pathway traveled by whales.
Step-by-step explanation:
The kenning that appears in lines 59-60 is Whale-road. This is an example of a kenning, which is a figurative expression used in Old English and Old Norse poetry to describe a person, object, or concept in a metaphorical way. The term 'Whale-road' refers to the sea, comparing it to a road or pathway traveled by whales.