On our drive back to the starting point for duning, we passed by a huge crowd of cars, so we decided to stop and see what was going on. This SUV comes from nowhere, whipping by, and heads up the dune. This is obviously an entertaining sport because there was certainly a large group of spectators. Then, as it got a little bit darker, all of these cars got in a long convoy and headed away -- we think it was almost the call to prayer and they were leaving to pray???