They are able to reach the water deep under the ground.
By the time they reached the water he was only two seconds behind.
With the cover on, the sun's warmth no longer reached the water.
People sometimes dig 10 to 15 feet to reach water.
Once I reached the water underneath there'd be no light at all.
That would have to do until he reached soap and water.
He found a place where it seemed a little digging might reach water.
I could reach the water when she lay over under a strong breeze.
It can reach water when the soil on top is dry.
Soon enough they reached shallow water, and after that it was easy.