Why is that Lake So Blue

Description: Why is our place magic? Why are its islands shaky? Why are our mountains tall and our forests green? Why are some lakes so blue? What happens below the waves? Who used to live here? What changed when mammals arrived? What happens in the dark? In this fun-filled, fact-rich book, award-winning science writer Simon Pollard shares the magic, secrets, mysteries and marvels of Aotearoa New Zealand's natural world.