“In the summer of 1999, a group of us went on an overnight rafting trip down the Guadalupe River in the Big Bend area of Texas. We started out in the morning and made camp on a sandbar before sunset. At this point, I estimate that we were probably around 50 to 100 miles from any town.
The river guides prepared dinner, we ate, and then a girl and I retreated to the river with our chairs. By this time, it was pitch black. You couldn’t see your hand in front of your face. We sat talking, and I faced my chair upstream and she was faced downstream.
As we talked, I noticed a light, very faint, traveling toward us from upstream. It got closer and closer and I could see that it was on the opposite side of the river. When it was directly across from us, I could see that it was about the size of a tennis ball, pale yellow-green, and about 25 feet in the air.