The bright blue sky is reflected in the surface of the lake in the middle of the forestThe bright blue sky is reflected in the surface of the lake in the middle of the forest
A trip to the tempting islands on the purest surface of the lakeA trip to the tempting islands on the purest surface of the lake
A beautiful sunset over a calm sea, the rays of the setting sun painted the surface of the water and clouds in golden colorA beautiful sunset over a calm sea, the rays of the setting sun painted the surface of the water and clouds in golden color
Sunset over the silent lake, at the surface of the ghostly waterSunset over the silent lake, at the surface of the ghostly water
В математике: граница, отделяющая геометрическое тело от внешнего пространства. Наружная сторона чего-н..