The county and those surrounding it are dominated by limestone chalk soils which is similar to that found in the region of Champagne, France.
Tours are due to restart on May 17.
13. Rathfinny Wine Estate, Polegate
A family-owned wine estate it was established in 2010 by Mark and Sarah Driver. Photo: Haywards Heath
14. Black Dog Hill vineyard, near Ditchling
A family run boutique vineyard producing multi award winning Sparkling wine within the unique chalky landscape of the South Downs National Park. Photo: Haywards Heath
15. Carr Taylor Wines, Hastings
David and Linda Carr Taylor established the vineyard more than 30 years ago. Photo: Haywards Heath
16. Wiston Estate Winery, Steyning
The sparkling wine from this family-estate was used by the Queen to launch the Britannia. Photo: Haywards Heath