Click on any image for a larger version. All but two of the photos were taken without flash, since the lighting provided by the park service was far more beautiful than the flat light of flash. I forgot to bring a tripod, so the photos were taken by bracing against the guard rail, with image stabilization turned on, using the "backlight" setting. My camera is a Panasonic Lumix FZ30. Typical exposures were 1/4 second at f/2.8. The photos were taken February 2007. There are no bats in February (a disadvantage), but likewise there are not many people. That makes it extra quiet in the cave.