I have never ventured in the ghost thing. But I was at the cavern place this weekend with my family. I took several hundred shots from my digital camera the tour of the caves was over 1 hour long. There is 2 photos both taken in the same area that have orbs in them. At first I thought oh they must be water droplets falling from the ceiling. But after looking at all the other photos I would expect to see more if they were water drops. I then had a flash back to watching the ghost hunters on sci-fi were I remembered them saying orbs are spirits or whatever. I then looked up orbs on the internet and there was a picture someone took in a grave yard. The orbs in that picture are the same color/shape as in my picture. Check them out

http://www.theyarenotgreen.com/DSC00339.JPG

http://www.theyarenotgreen.com/DSC00342.JPG


There is a real strange box looking thing in front of the ladies nose. Also check out the loud speaker looking its looks out of place.

Those look like they could be dust particles.

400 shots were taking I would expect to see these in all photos if it were dust but who knows. Im not expert in this area

Yeah it could be anything.

O No green slime.. someone call ghostbusters... that one you circled does
look like a cube with eyes and lips and is stairing right at the person
in the pic. if you was quiet enough you would have heard a little squeeky
voice saying something i agree though if these are just dust or water
they should show up in mostly all the pics. did you get a strange feeling
while walking through there

The bottom pic is more than likely a reflection off the water.

Orbs are 'made' when there is a reflective surface in the photograph, and when a flash is used. Orbs are caused by light refraction due to the flash reflecting off these surfaces.

Another point - Orbs that are paranormal have been described as not having any circular patterns inside them, and also are different colours.