The Causeway Collection is an annual series of whiskeys from the Irish single malt distillery of Bushmills. One of the oldest distilleries in the world, Bushmills isn’t situated far from the Giant’s Causeway, a World Heritage Site on Ireland’s North Coast. Bushmills 10 Y Causeway Collection is triple distilled and initially aged in bourbon and Oloroso sherry casks. It was then transferred into Cognac casks for the final 30 months of maturation.