The distinctive brown hue of rivers and lakes around Pemberton, Western Australia, is primarily due to tannins—natural compounds released from decaying vegetation. As water flows through the dense karri forests and peat-rich soils characteristic of the Southern Forests region, it absorbs these tannins, resulting in the tea-like coloration observed in local waterways. Understanding Tannins Tannins… Continue reading Why are the waters brown (or as we say, Golden Copper)