Category: children’s interactive adventures; adventures; interactive books; coral reef; marine biology; climate change; Pacific Ocean; Palau; coral bleaching; Great Barrier Reef; AUV; sonar; mesophotic coral; sub; submersible; deep-sea coral; lionfish; ROV; super coral seaweed and coral; coral colonies; pollution; trash and coral reefs; ocean temperatures; books about saving the environment; kids' books about environment; kids' books about coral reef