Tower Rock — a massive island in the middle of the Mississippi River south of St. Louis — is typically surrounded by water and only accessible by boat. But as severe drought spreads across the Midwest and pushes river levels to near-record lows, people can now reach the rock formation on foot.

(SOURCE) https://www.cnn.com/2022/10/15/weather/mississippi-river-low-water-tower-rock-climate/index.html