This extraordinary karst spring is one of the sources of the Cetina – the longest river in Dalmatia, Croatia. It is also known as "the Eye of the Earth" due to its strong resemblance to an eye and spectacular shades of blue and turquoise. ⁠Divers have been able to investigate the spring up to a depth of 155 meters.⁠ The Cetina river flows at the foot of the Dinara, the highest mountain massif in Croatia, and goes out into the Adriatic Sea.⁠ ⁠ Would you jump into "the Eye of the Earth?"⁠ 📍Cetina