Buy Clos Ostler NZ Wines online for delivery or shop in-store. The beautiful but challenging environment of the Waitaki makes it difficult for the vine growers but wonderful for the winemakers. The story of Clos Ostler began in earnest 38 million years ago when geological forces drove an ancient limestone seabed upwards forming the building blocks of the modern Waitaki Valley in Aotearoa, New Zealand. Today, the valley is home to one of New Zealand’s unique wines growing climates — one that sits close to the margins of vine growing. New Zealand nationwide Delivery, T&C apply. Shop at Liquor Legends, Become a Legend! Best Price Value and Quality Service guaranteed.