The Blue Eye is a water spring and a captivating natural phenomenon in the remote mountainous regions of Sarandeh, and what impresses people around it is the way it catches the sunlight on a clear day, creating a deep shade of blue that sparkles like a blue eye, and this effect is caused by rising bubbles Oxygen from the bottom of the spring, which is at least 50 meters below the surface. The site is really cool and well worth a visit, as picturesque oak and sycamore trees surround the water, and there is a wooden observation deck directly above the eye.