Jill Heinerth captures the alien world of underwater caves. Long considered the world's most dangerous sport, Heinerth has managed to bring back stunning images from places few will ever experience.
A swimmer enjoys the cool, clear waters of a natural spring at Madison Blue State Park, Florida. Cave divers like photographer Jill Heinerth, swim the watery labyrinths below the sunlit waters.
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A swimmer enjoys the cool, clear waters of a natural spring at Madison Blue State Park, Florida. Cave divers like photographer Jill Heinerth, swim the watery labyrinths below the sunlit waters.