aerial top down view about cetina river spring (izvor cetine)

aerial top view cetina river spring izvor cetine eye earth incredible karst located foothills dinara mountain range croatia adriatic view blue eye cetina spring cetine croatia aerial nature croatian croatian landscape crystal clear dalmatia dalmatian environment europe earth geology glavas source idyllic karst lake mediterranean natural outdoor rijeka scenery scenic speleology summer tourism tourist destination travel turquoise vacation wilderness