Using gopro and drone I have attempted to show the scale of this amazing tree. From the ground you really can’t gauge its true height. The Ada Tree is a giant mountain ash (Eucalyptus regnans) and is one of Victoria’s largest trees. It is also one of the largest known flowering trees in the world. Estimated to be at least 300 years old, the Ada Tree stands about 76 metres tall with a circumference of 15 metres.