A supernatural realm?

Metaphysical realists talks about a true world; a world wherein thinks existed in their natural self. In this world, things exist independent of human interventions and perceptions thus apples here are "real" apples as Ernst von Glasersfeld puts it. We could also extend this world to include and support the objective theory of time supported by Henry of Ghent and Giles of Rome which states that time " exists in reality as a mind-independent continuum...". It is my conclusion therefore that the true world independent of our perceptions is one in which time, real apples and the reality of the world exists as what they are; without out interpretaions and perceptions.So here is my question; if this world can't be accessed, can we therefore classify it as being supernatural? Is the true world that contains real apples and time( as a mind-independent entity) metaphysical (as in beyond physical space and time)? How then can we talk of this supernatural world or at least attest to its existence when we don't know it exist or can't talk of it without making it our percieved notion of the world especially since most philosophers and great thinkers would argue that there has to be people present for things to exist (subjective theory of existence and reality) or as Aristotle puts it in reference to time; "for if there cannot be someone to count there cannot be anything that can be counted...".