There's a lake that appears to be a giant mirror - Apparently.
Lake Bistineau in Louisiana, USA, is a 12-mile-long lake that is so shallow and clear that it reflects the surrounding trees and sky like a giant mirror. The lake's clarity is due to its unique geology, with a layer of black soil that prevents algae growth and keeps the water crystal clear. In fact, the lake's mirror-like appearance is so striking that it has been called "the world's most reflective lake" and has been featured in numerous scientific studies and documentaries.