Nature, in the broadest sense, is the natural, physical, material world or universe. “Nature” can refer to the phenomena of the physical world, and also to life in general.
Within the various uses of the word today, “nature” often refers to geology and wildlife. Nature can refer to the general realm of living plants and animals, and in some cases to the processes associated with inanimate objects—the way that particular types of things exist and change of their own accord, such as the weather and geology of the Earth.
It is often taken to mean the “natural environment” or wilderness—wild animals, rocks, forest, and in general those things that have not been substantially altered by human intervention, or which persist despite human intervention.

A beach head or head for short is a stone construction perpendicular to the coast, usually built to prevent the desanding or rather erosion of the beaches. Furthermore, breakwaters have the function of keeping a tidal current that travels along the coast away from the coast, so that this current cannot erode the coast. This is also applied to dikes. These structures do not break the waves. There are also pile heads (stone berm with one or two rows of wooden posts on top) and post screens (row of posts without stone berm).

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