beautiful scenery in the delta of gallikos river, kalochori, greece, a refuge for many species of birds and fish

beautiful scenery delta gallikos river kalochori macedonia greece refuge species birds fish autumn bird blue calm cloud cloudy delta ecosystem ecotourism environment estuary fishing gallikos greece greek gulf habitat kalochori lagoon lake landscape macedonia nature overcast reed refuge river riverbed scenery scenic sea seascape serene sky swamp thermaic thermaikos thessaloniki tranquility travel vegetation visit water wetland wildlife winter