….Sue’s word challenge this week is ‘undulate’, meaning to move with a smooth wavelike motion

From subtle ripples in the sand to man made structures (pipe organ and hallway at the AGO) and back to nature (The Cheltenham Badlands).

http://suellewellyn2011.wordpress.com/2014/01/25/a-word-a-week-photograph-challenge-undulate-waveyripple/#like-11928