Park rangers patrol in a bout at Kopacki Rit

 
Park rangers patrol in a bout at Kopacki Rit
Park rangers patrol in a boat along a waterway at the Kopacki Rit nature park in Osijek April 18, 2012. Environmentalists say that a planned waterway regulation project on the Danube in eastern Croatia, currently pending government approval, could threaten Kopacki Rit nature park, one of the best preserved wetlands of Europe. Picture taken April 18, 2012. REUTERS/Antonio Bronic (CROATIA - Tags: ENVIRONMENT)