Multiple choice general knowledge Where is the Sea of Tranquility? Near the Bermuda Triangle In the Pacific Ocean On the Moon In the Atlantic Ocean Reveal answer Fill a bubble to check yourself C Correct answer Explanation The Sea of Tranquility (Mare Tranquillitatis) is a lunar mare on the Moon's surface. It gained fame as the landing site of Apollo 11, where Neil Armstrong and Buzz Aldrin became the first humans to walk on the Moon in 1969.