It might not look like much, but this is the Valley of Elah, the place where David slew Goliath. That dried river bed very well could have been where David picked up the now famous stone the killed Goliath. Just imagine being there!
You both are so tiny right now but you will grow up to face some giants in your life. God is bigger than any giant. David fought the battle and won all because He stood up to the Goliath in the Name of the Lord Almighty!