tourist guy swiming into the unique karst source of water gushing from the ground called the blue eye or syri i kalter. albania

albania albanian attraction bistrica bistrice blue called clear crystal depth environment eye green ground gushing guy hole kalter karst lake landmark landscape man muzine national natural nature outdoor park pond popular river saranda sights sightseeing source spring stream summer swim swiming syri tourism tourist tourists travel turquoise underground unique vacation water