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.