A walk on the beach—the line where water and land meet. The power of waves on one side. The strength of the land on the other. Cliffs, coves, sandbars—all features of the coast defined by the dynamics of tides, waves, and wind. They harbor natural wonders of sea stars and seashells, nesting birds and sea turtles. The National Park Service preserves shores from the Great Lakes to the great oceans. Discover your coast within these pages!