Who, or what, is a Naturalist? With the help of author Briony Penn, we trace the intertwined stories of two pivotal characters in the modern environmental movement: Cecil Paul (Wa'xaid) & the late Ian McTaggart-Cowan. These larger-than-life figures inspired a generation to reconnect, intellectually and spiritually, with the natural world. Associate producer Fern Yip investigates what it all means to the youth of today.