By faith, we believe the Scriptures. Permitting that point of view to “filter” what we see, the world is one big kaleidoscope of evidence for the (one) worldwide flood.
For example, try explaining the formations in the Western US desert any other (credible) way.
If you will not believe, then I cannot persuade you, of course.
Which formations would those be, and how did they exactly form, according to you?