I am going to Luray Caverns for the first time. They recommend and allow flash photography according to their website. However, I don't have an external flash available and I don't believe my flash built in on the 60D will be of any value.
The lens that I have are the 35F2, 50F1.8MK1, 10-22F3.5-4.5 & 18-200F3.5-4.5. Is it possible to shoot decent photos with out the use of external flash? Or should I just leave the camera in the car?
I will eventually get a 580EX II but not for another month or so.
I do have a tripod (not sure that would be allowed on the tour) but no monopod (yet).

