great blue heron fishing on a sandbar during a beautiful chesapeake bay sunset at blackwater wildlife refuge in maryland

animal bay beach bird blackwater blue chesapeake clouds cloudy coastal coastline colorful dusk eastern enjoyment estuary gold golden grassland grassy great heron inlet island lake landscape looking marsh marshland maryland nature orientation refuge sand sandbar serene shore shoreline sundown sunlight sunset tranquil twilight vertical watching water waterfowl weeds wildlife