From luminous squid to invisible plankton, from sandy shorelines to the bone-crushing pressure of the deep, marine conservationist Tom "The Blowfish" Hird takes us on an incredible journey revealing what lurks beneath the waves. A treasure chest of fascinating facts, full-colour photos and vintage line drawings, Blowfish's Oceanopedia is a stunningly beautiful guide to all we know about our oceans and the weird and wonderful creatures that inhabit them.