Département de la Manche (1) Maps (1) Observations (1) Archives (1) Observations (1) Maps (1) Archives (1) Tides (1) Sluice gates (1) Shorelines (1) Seashore (1) Sand (1) Running (1) Ribs (1) Note-taking (1) Navies (1) Indigenous peoples (1) Marginalia (1) Intertidal zonation (1) Gravel (1) Equilibrium (1) Embankments (1) Dikes (Engineering) (1) Coasts (1) Evolution (1) Erosion (1) Toma de apuntes (1) Grava (1) Arena (1) Riberas (1)