9. (3 points) There is a ferry at a certain dock. One day, the ferry departed from the south bank and sailed to the north bank, making a total of 202 trips (a round trip counts as two trips), at which point the ferry was docked at the $\qquad$ bank.
【Answer】Solution: After an odd number of ferry crossings, the boat is on the north bank, and after an even number of ferry crossings, the boat is on the south bank. 202 is an even number, so after 202 ferry crossings, the boat is on the south bank. Therefore, the answer is: South.