Skeptics of Biblical miracles need to be more open minded about how such things could easily happen in nature, and that such miracles are miraculous because of their providential timing, and usually not because such things are impossible.
Case in point? The bi-annual appearance of a land bridge between Jindo and Modo islands in South Korea (click through both links to see the amazing pictures – those dots in the image at right are people!). Twice a year, a 2km land bridge appears at low tide, and people walk between the islands in a celebration. This same type of bridge has been identified in the Red Sea crossing. The more you do your archaological and historical research, the more you realize the stunning accuracy of the Bible.