Leisa Stewart-Sharpe

This is our Blue Planet: a beautiful blue marble suspended in a sea of stars. Unlike billions of other worlds in the Milky Way, 71 per cent of our Blue Planet is covered by ocean.

With so much more to discover, take a deep breath... and dive into a wondrous world beneath the waves. Explore coral reefs that shimmer in a kaleidoscope of colours. Venture to the bottom of the ocean where creatures beyond your wildest imagination live in the dark. Chase sea otters through kelp forest seas, and glide the open ocean with humpback whales. Discover all there is to love about our Blue Planet, the stories of its inhabitants, and realise how you can help protect this wilderness beneath the waves.

Welcome to Frozen Planet II. Dive under the ice ceiling and learn to swim with the seal pups, take to the skies with frozen flamingos, and settle in for a snooze with a windy walrus. Watch orcas sneak up on bowhead whales while they're relaxing in the spa, meet a Greenland shark that is easily 250 years old, and witness the polar bears who are finding their food closer and closer to humans.

Hold your breath in the frozen forest where wolves play hide-and-seek with bison, and meet the lemmings that outwit an arctic fox by building their home right under her feet, buried deep beneath the snow. Wrap up warm, and discover spine-tingling true stories from our incredible planet.

Right under your feet, and all around you, is a secret world you've probably never noticed. Until now. Let's explore our Green Planet: a secret world of plants that might change how you see plants forever . . . Discover all there is to love about our astonishing Green Planet, the stories of its inhabitants, and the challenges it faces.