Marmo the Octopus at Galway Atlantaquaria on World Oceans Day with the 3D Earth Cake, inspired by the Great GeoBake Off.Sarah Knight (Ryan Institute Outreach Officer), Marmo (our beloved octopus) and Siddhi Joshi (Resident cake baker) cut the Earth cake on World Oceans Day.The 3D Earth Cake has layers for the core, the mantle and the crust, with a very tasty educational goal!