Almost three tonnes of ice will soon be dangling high above Nelson's harbour while suspended dancers struggle to balance on it, as it melts over the course of a day. The city's Festival-goers will be the first in New Zealand to see THAW, a work asking viewers to think about how they can personally take action over the climate crisis. It's also about human adaptability and survival. THAW is performed by Australian physical theatre company Legs On The Wall and created by its Artistic Director, Joshua Thomson. Lynn Freeman talks to Joshua in Australia before he arrives in Nelson. THAW has its New Zealand premiere at the Nelson Arts Festival on 24 October.