If the Bible was true and the Garden of Eden once existed, shouldn’t it still be around somewhere for archeologists to discover?

Answer 1

Some, such as Calvin and Delitzsch, have argued in favor of Eden’s situation somewhere near the head of the Persian Gulf in Lower Mesopotamia, approximately at the place where the Tigris and the Euphrates draw near together. They associated the Pishon and Gihon with canals between these streams. However, this would make these rivers tributaries, rather than branches dividing off from an original source. The Hebrew text points, rather, to a location in the mountainous region N of the Mesopotamian plains, the area where the Euphrates and Tigris rivers have their present sources. Thus The Anchor Bible (1964), in its notes on Genesis 2:10, states: “In Heb[rew] the mouth of the river is called ‘end’ (Josh xv 5, xviii 19); hence the plural of roʼs ‘head’ must refer here to the upper course. . . . This latter usage is well attested for the Akk[adian] cognate resu.” The fact that the Euphrates and Tigris rivers do not now proceed from a single source, as well as the impossibility of definitely determining the identification of the Pishon and Gihon rivers, is possibly explained by the effects of the Noachian Flood, which undoubtedly altered considerably the topographical features of the earth, filling in the courses of some rivers and creating others.The traditional location for the garden of Eden has long been suggested to have been a mountainous area some 225 km (140 mi) SW of Mount Ararat and a few kilometers S of Lake Van, in the eastern part of modern Turkey. That Eden may have been surrounded by some natural barrier, such as mountains, could be suggested by the fact that cherubs are stated to have been stationed only at the E of the garden, from which point Adam and Eve made their exit.​—Ge 3:24.

Answer 2

It would be except for one thing. A few chapters later in Genesis, there is a world wide flood—and the landscape of the earth was changed dramatically. But one day in heaven, we will know what Eden was like.

Answer 3

Many scholars believe that The Garden of Eden is deep under water within the Persian Gulf. It appears that The Great Flood resulted in much more water in that region.