It may be obvious, but when someone says something is very good it is assumed that the thing is not perfect. In fact the use of the qualifier "very" denotes that "goodness" is collection of shades of grey. Something can be very good, good, sorta good, kinda good, almost good, formally good, etc. There is no grey in perfection. Something is either perfect or it is not. If something is kinda perfect means that it is not perfect.
This is important to remember when Christians read Genesis this point that God does not declare creation as perfect but "very good". Creation was never perfect. Even the garden where Adam and Eve trotted was not perfect. It was very good.
There has never been a state of perfection that we "fell" from. There are only shades of good.
Which means that we can see places and times in the world that are very good. We will never see perfection. But when we see very good, we get a glimpse of what God intends.
Looking for a geographic location for "Eden" is a red herring. Creation is infused with good and the very good. Stop looking for perfection.
It was never made.