Hurricane Irma's incredible power drew all the water from this beach at Long Island in the Bahamas, leaving behind only dry land.
In the story of the Exodus, Moses raises his staff and the Red Sea (Yam Suph, sometimes translated as the Sea of Reeds) empties of its water. God caused the sea to recede with a powerful east wind (Ex. 14:21). The water was piled up in a great wall to the side of the dry land, and this phenomenon lasted long enough for allegedly 600,000 Israelites to cross. When the Egyptians followed in their chariots the wind stopped and the sea returned, drowning them.
This is exactly what was seen at the Bahamas, minus the drowning Egyptians. Hurricane Irma's powerful winds and low pressure caused a huge bulge of water in the center of the storm, draining the beach, and the beach was dry for many hours, apparently. When the hurricane hit land the huge storm surge caused tremendous waves to crash on shore and caused massive flooding.
The mechanism exists for a powerful wind (hurricane or other storm) to drain a shallow body of water long enough for people to cross, and for huge waves to arrive to drown masses of people. The narrative account exists that says that just such an event happened somewhere in Egypt over 3,000 years ago during the Exodus. You could argue that such an occurrence was purely natural, and that it was one hell of a coincidence, or maybe it really was a miracle, but the crossing of the sea is definitely plausible. We can't prove that it happened, but it definitely could have happened, and this is what it would have looked like.