It covered the tops of those mountains with about 7 metres of water.
Listen, this is how big I want you to make the boat. It has to be 140 metres long, and 23 metres wide, and 13½ metres high.
The water got so deep that it covered all the big mountains everywhere.
So 5 months after the start of the flood, the big boat got stuck in the mountains called the Ararat mountains.