Temple Street Children's Hospital yesterday opened its new Diarmuid Gavin-designed sensory garden. The tiny 7 metre by 2 metre space at the basement level in front of the hospital has turreted castle dens, an underground aquarium, flying airships planted with vegetables and a Punch and Judy theatre. Pictured are Anthony (3) and his sister, Sandrina Iannucci, from Sallynoggin, Co Dublin.