Laurentian underground river blow 2 caps off wells in high park in Toronto.
Subject: High Park Laurentian underground river

When Isaac planted his crops that year, he harvested a hundred times more grain than he planted, for the Lord blessed him. He became a very rich man, and his wealth continued to grow. He acquired so many flocks of sheep and goats, herds of cattle, and servants that the Philistines became jealous of him. So the Philistines filled up all of Isaac’s wells with dirt. These were the wells that had been dug by the servants of his father, Abraham. (Genesis 26:12-15 NLT)

http://www.highparknature.org/wiki/wiki.php?n=Explore.LaurentianRiver

Early the next morning, they each took a solemn oath not to interfere with each other. Then Isaac sent them home again, and they left him in peace. That very day Isaac’s servants came and told him about a new well they had dug. “We’ve found water!” they exclaimed. So Isaac named the well Shibah (which means “oath”). And to this day the town that grew up there is called Beersheba (which means “well of the oath”). (Genesis 26:31-33 NLT)