Scientists finally came from the nearby university, but they only stayed for a few minutes. They walked up to the water’s edge and then back to me. They were angry. “It is impossible! It is a small and shallow freshwater lake with no access to the ocean!”

“Yes, I know it is impossible,” I said. “That’s why I called you.”

Nevertheless, every two or maybe three years they appear. They only stay a few hours. It is never predictable. But if you go to the lake often and wait patiently, eventually, they will arrive.