The Hibernia platform in Canada is one of the largest floating drilling rigs in the world. This massive drilling rig is one amazing mega machine! While not every drilling rig is as large as the Hibernia, each mega machine is designed to dig deep holes. Young readers will learn not only how these mega machines work, but different ways workers use them on dirty jobs. With approachable text and vivid, full color photographs, young readers will love discovering how drilling rigs work!