If you think construction workers have a tough job, try doing it underwater. These professionals stay underwater for hours to build bridges and buildings beneath the surface. Dive in to explore the history of underwater construction workers, the tools they use, and the dangers they face every day.
Clara Cella lives, writes, and draws in Red Wing, Minnesota. Her nonfiction titles for children celebrate all sorts of things, from groundhogs and US presidents to aircraft, aliens, and trolls. She recharges her creative battery with hikes along the river bluffs with her dog, BetsyBoo.