There are other Top Fives that are kept secret and include the Beaufort Sea, Colorado, MacKenzie River and the Falkland Islands.

• 有其他被保密的包括波弗特海(靠美国阿拉斯加州东北岸和加拿大西北岸）、科罗拉多、（加拿大）马更些河和福克兰群岛（南大西洋，即马尔维纳斯群岛）的“前五”。