Arcadia (Greek: Αρκάδια) refers to a vision of pastoralism and harmony with nature. The term is derived from the Greek province of the same name which dates to antiquity; the province’s mountainous topography and sparse population of pastoralists later caused the word Arcadia to develop into a poetic byword for an idyllic vision of unspoiled wilderness. Arcadia is a poetic shaped space associated with bountiful natural splendor and harmony.[1] The ‘Garden’ is often inhabited by shepherds. The concept also figures in Renaissance mythology.[…]

“Arcadia” connotes not a human civilization, yet rather a spontaneous result of life lived naturally and thus not corrupted by civilization.

[…] Though depicted as contemporary, this pastoral form is often connected with the Golden Age. It may be suggested that its inhabitants have merely continued to live as persons did in the Golden Age, and all other nations have less pleasant lives because they have allowed themselves to depart from original simplicity.

Source: Arcadia (utopia) – Wikipedia