With Seaweed Covered Sand On The Beach Of Saint Michel-en-Grève (Bretagne) - The Lieue The Grève Is A Hugh Beach In Saint Michel-en-Grève. When It Is Ebb The Water Retires For Many Kilometres And Much Seaweed Is Left, When It Is Flood Dry Sand Is Disappearing Underwater Totally. From A 80 M. High Rock, The Grand Rocher, It Is A Fascinating To See The Game Of The Water. Photo