The Empty Yet Full Boat

Riddle: You see a boat filled with people, yet there isn't a single person on board. How is that possible?

Answer: All the people on the boat are married.

Source: https://www.riddles.com/8907

You see a boat filled with people, yet there isn't a single person on board. How is that possible? — the empty yet full boat by Sami Frye v1.

Riddle: You see a boat filled with people, yet there isn't a single person on board. How is that possible? Answer: All the people on the boat are married. — by Sami Frye v2.