Lighthouse surrounded by a smooth surface of waterLighthouse surrounded by a smooth surface of 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
The surface of the ancient pond was covered with brown mudThe surface of the ancient pond was covered with brown mud
Reflection of a watermill on the surface of the water in the eveningReflection of a watermill on the surface of the water in the evening
Macro shooting. textured blue surface. frozen dropletsMacro shooting. Textured blue surface. Frozen droplets
В математике: граница, отделяющая геометрическое тело от внешнего пространства. Наружная сторона чего-н..