One of the world’s best-known and most-studied caves, Carlsbad provides unique learning opportunities for anyone who wants to understand how major geologic changes could have taken place quickly as a result of the catastrophic, global Flood.
Carlsbad Caverns is a series of limestone caves. Massive layers of limestone can form quickly, even within weeks, under conditions that include mineral-rich water. Once layers form, microbes and acids can eat away the limestone, quickly carving passages and chambers. “The largest subterranean chambers anywhere in the world could have been excavated during one year,” says cave expert Emil Silvestru.
While the official guided tours promote an evolutionary timeframe, a little bit of study ahead of time will help you understand how the unique conditions of the Flood, which will never be repeated, helped to make these subterranean wonders possible.
http://www.answersingenesis.org/articles/am/v4/n4/underground