"In February this year, I took an unforgettable walk through Mossman Gorge in Far North Queensland, led by a local Eastern Kuku Yalanji Aboriginal guide. As we wandered through the rainforest that fringed the roaring river, our guide taught us about reciprocity and how the Indigenous people here practice it: never take more than you need, and give the land a chance to regenerate. 'You have to look after Mother Nature, or she won’t look after you,' were his parting words. They have stayed with me ever since."