Istanbul Strait, the iconic waterway separating Asia and Europe, has temporarily transformed into a brilliant shade of turquoise. This mesmerizing annual color shift is caused by Black Sea currents and an abundance of marine microorganisms, offering a visual feast to Istanbul residents. Aerial views showcase the striking contrast of the vibrant waters against the city’s green hills, the historic Rumeli Fortress, and the modern skyline. Adding to the breathtaking scene, boats glide beneath the Fatih Sultan Mehmet Bridge while dolphins have been increasingly spotted playing in the newly tinted waters. A massive Turkish flag waving from the Anatolian hills further enhances this unique display of the city’s natural and cultural beauty.