Cayman Islands is about 1.2 times bigger than Mammoth Cave National Park.

Mammoth Cave National Park is approximately 219 km² (84 sq mi), while Cayman Islands is approximately 264 sq km, making Cayman Islands 21% larger than Mammoth Cave National Park.
Tip: This to-scale comparison of Mammoth Cave National Park vs. Cayman Islands uses the Mercator projection, which distorts the size of regions near the poles.

Compare further: Cayman Islands vs. Mammoth Cave National Park

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