In the garden of Eden there was the tree of knowledge (We have that, and it causes death) There were other trees for Adam and Eve to eat off (God doesn't say what those trees do) Then there was the tree of life (Was that the way to heaven?) What about the cherubs on either side of the garden (Bio polarization guarding the way back in?)
Maybe?
Compare the River in God's Garden of Eden with the River shown in Ezekiel 47 which is for after Christ's 2nd coming.
God's Garden of Eden, or Paradise, is wherever He is. It was once upon this earth per Gen.2-3. But at the ending of Gen.3 we are shown cherubs put in place to guard the way to the tree of life, which is in ... His Garden of Eden Paradise. Since then it has been in Heaven where He is.
It requires understanding about the two different dimensions of existence written of in God's Word, this earthly one of material matter, and the Heavenly one of spirit. Because He once dwelt upon this earth as shown by His Eden in Gen.2, it reveals the Heavenly dimension can be joined with this earthly dimension in the same space and time. This is what Revelation 21-22 shows also about the future New Jerusalem coming down out of Heaven from God to this earth.