What? Don't leave us hanging, Rao!
The photographer in me likes the artifical light conditions in commercial caves that allow for hand-held timed exposures, but the geologist in me cringes when I see naieve tourists snapping flash pictures of highly light-sensitive formations.
I haven't been to any midwest caves yet, so maybe in a few years, I'll check this place out.
@Russel, if you need another excuse to visit the Marvel Cave, remember, Outlaw Run opens next Spring!
And thanks to the rest of y'all for your kind words. I look forward to your "Attraction of the Week" articles in the future!
I'll have to check out SDC sometime on one of my many roads trips across the country.