On a trip to Egypt, we were on the Nile for a few days and at night we would dock, get out & walk around barefoot. Crunch crunch, meh.. dry leaves sticks.
Next day we pull up during the day and I noticed all these holes, I mean the whole area around me, roughly the same distance in on the bank as the night before, was just all these inty holes in the dirt, so I asked the guide what the holes are and he says they are scorian holes, it's ok they only come out at night.
