Looking down at Lake Wanaka, with what William dubbed “One Tree Hill” off to the right. A little stream leads through the sheep pasture. January 5, 2016 × Looking down at Lake Wanaka, with what William dubbed “One Tree Hill” off to the right. A little stream leads through the sheep pasture. Looking down at Lake Wanaka, with what William dubbed “One Tree Hill” off to the right. A little stream leads through the sheep pasture.