Discovering Waitaki Whitestone
Waitaki Whitestone, also known as Ōamaru Whitestone, is a distinctive limestone found in the Waitaki region of New Zealand's South Island. This stone is renowned for its use in constructing the Victorian and Edwardian architecture of downtown Ōamaru. Despite its historical use, the region's natural limestone formations remain largely untouched, offering a unique geological landscape for visitors.
Geological and Historical Significance
The formation of Waitaki Whitestone dates back approximately 25 million years. It originated from layers of sediment and marine animal remains that compressed under a shallow sea. Over time, these layers were uplifted, contributing to the formation of New Zealand / Aotearoa. Erosion has since sculpted the limestone into striking cliffs, ranging in colour from white to cream to yellow. The area is also rich in fossils from the same era as the limestone, and some cliffs feature Māori rock drawings.
Exploring the Limestone Features
The most notable limestone formations are located near Duntroon, a small town situated on the south side of the Waitaki River. You can start a self-guided one-day tour of the area at the Vanished World Centre. This centre combines a fossil and rock museum, an activity centre, and a souvenir shop. Visitors can obtain maps and guidance on exploring the nearby Whitestone features, including marine fossils such as ancient whales.
Key sites to visit include the Takiroa Māori Rock Drawings, Earthquakes Waipata, Elephant Rocks, and the Anatini Fossils. Island Cliff offers some of the most accessible examples of exposed limestone cliffs. Many of these locations are marked by "Vanished World" road signs, although these can sometimes be obscure. Additionally, the Alps2Ocean Cycle Trail passes through the area, making it convenient to explore most sites by bike.
How to Get There
To reach the Waitaki Whitestone formations, travel to Duntroon via State Highway 83 from Ōamaru, a journey of about 42 km northwest. The area is well-suited for cycling, with the Alps2Ocean Cycle Trail providing easy access to many of the limestone sites.
Nearby attractions include the historic town of Ōamaru, known for its well-preserved buildings and Heritage Precinct, as well as lovely Bushy Beach.
