If the whales were trapped in a inland lagoon, the water would have dried up and left them stranded,......just as the Ark was stranded on a mountain. There IS evidence everywhere of a worldwide flood. There is more evidence of a flood than there is whales growing legs to become modern day cows.
Wait... there are some opposing views on the “cows/whales” evolution.
Did the cows go back in the water and become whales,
or did the whales venture up on the land and grow legs?