Bay area1.6 billion m^2
2.7 hundredthsLake Michigan surfaces
12.8San Franciscos
290,226Football fields
Photo from Wikimedia Commons
Ha Long Bay
Nearly 2,000 limestone karst islands rising from emerald waters/Natural Wonders
Ha Long Bay in northeastern Vietnam is a UNESCO World Heritage Site consisting of roughly 1,969 limestone karst islands and islets rising from the emerald waters of the Gulf of Tonkin. The bay covers approximately 1,553 square kilometers, with the densest cluster of islands in the core zone of 334 square kilometers. Many islands are hollow, containing enormous caves formed over millions of years. The tallest island peaks reach about 200 meters above sea level. The name translates to 'descending dragon,' reflecting a legend that a dragon family helped the Vietnamese defend against invaders.
Measurements
Core zone area334 million m^2
696 billionPostage stamp areas
5.1 billionLicense plates
Tallest island peak200 m
131,579Stacked pennies
909 billionSilicon atoms
140 trillionthsSaturn orbit radii
Coastline length120,000 m
666,667Bananas
24,000Balance beam lengths
6.7 millionRing diameters
Surprise Cave length10,000 m
349Basketball court lengths
6,667Standard pool noodles
Average water depth10 m
2.5 tenthsWater tower heights
11.8Cricket bats
27.8 quintillionthsOrion Nebula diameters