Mario, Tyra and Liza: Tyra Builds Sandcastles at the Beach

In this programme we drop in on three children who are all having a very busy day. In Italy, Mario, who is seven, spends Saturday cleaning prawns ready for customers at his dad's fish shop. On a hot day in Ghana, five-year-old Tyra cools off at the beach and builds a massive sandcastle. And in Russia, seven-year-old Liza and her twin brother Styopa build a giant plastic tower, only to see it knocked down by their little sister Yulia.