The ocean is a big, mysterious place. With the magic three-colour lens included in Illuminoceans, shed some light on the darkest depths of our watery world, and encounter the creatures, seascapes and surprising underwater features of all of Earth's oceans. From the mighty Pacific to the polar seas, Illuminoceans takes readers on a journey of discovery through the most mysterious environments known to science.

Meet majestic mammals like blue whales, orcas and dolphins, shoals of colourful fish, and whole oceans full of weird and wonderful reptiles, plants and tentacled titans. With your lens in hand, explore the worlds of wonder hidden just below the surface. Your red lens will uncover the fish from each habitat, from the beautiful but deadly lionfish to the gentle giant, the whale shark.

Use your blue lens to meet the other creatures that call the oceans home, including the elusive giant squid and fearsome leopard seal.  The green lens sheds light on the environments in which these animals live, revealing majestic coral reefs and kelp forests. Continent by continent, ocean by ocean, and layer by layer of the sea, Illuminoceans is an undersea odyssey like you've never experienced before.