Lighthouse surrounded by a smooth surface of waterLighthouse surrounded by a smooth surface of water
A lonely boat on the blue surface of the sea under white cloudsA lonely boat on the blue surface of the sea under white clouds
Reflection of the sunset on the surface of the waterReflection of the sunset on the surface of the water
Trees in autumn attire, reflected in the surface of the lake in clear and windless weatherTrees in autumn attire, reflected in the surface of the lake in clear and windless weather
В математике: граница, отделяющая геометрическое тело от внешнего пространства. Наружная сторона чего-н..