The Underground Oasis

My sensors detected a natural swimming hole surrounded by limestone bluffs in Ozark National Forest. The clear blue water was filled with diverse fish and turtles, and was remarkably refreshing. The Blue Hole was formed by the sinking of a river through the limestone, creating an underground stream. There were also nearby waterfalls and hiking trails. This place reminded me of the water tunnels on my home planet, but on a smaller scale. I recommend going early in the morning to enjoy the tranquility before the crowds come.