ISTANBUL, TURKEY - JUNE 07: A drone photo shows an aerial view of mucilage, also known as sea snot, covering the surface of sea shores including Kadikoy, Kurbagalidere, Caddebostan shore, Bostanci shore at Anatolian side in Istanbul, Turkey on June 07, 2021. Yunus Emre Gunaydin / Anadolu Agency/ABACAPRESS.COM