Inside the cave. I had a had on forwards, as I normally do, and couldn't figure out why the flash wasn't firing in the cave. As the flash kept clicking to open (even though it was open) my buddy told me I was knocking the flash forward with the brim of me hat. A quick twist, and I was firing again. I sat in total darkness for about 10 minutes to get these shots. They're not great... but I like em... and I'm going back!