After over 25 years of working for large companies, a new challenge beckoned winemakers David O'Leary and Nick Walker. They established O'Leary Walker Wines in 2000, opening their cellar door in the Clare Valley in 2010.

O'Leary Walker draw from leading South Australian sites, making the conscious decision to select varieties that excel in each viticultural climate. Their signature Shiraz and Riesling is from picturesque vineyards at Watervale and Polish Hill River, while they source other parcels from the Barossa Valley and the cool, elevated slopes of the Adelaide Hills. In the winery they use a combination of traditional and innovative techniques.

At O'Leary Walker each wine is a small batch, single vineyard expression of its region and vintage. The Claire Reserve Shiraz leads, with other highlights including Drs Cut Reserve Riesling and The Sleeper Shiraz.