La Sirena operates in Calistoga, where volcanic soils and warm days shape wines of intensity and structure. The winery's portfolio centers on Syrah, a variety that thrives in the region's heat. The Syrah Barrett Vineyard and the estate Syrah both demonstrate the grape's dark fruit character and peppery spine, while the Art Bus Red—a blend of Cabernet Franc, Syrah, and Cabernet Sauvignon—shows how the winery layers complexity across Bordeaux and Rhône varieties. These wines have been assessed by Wine Enthusiast, Wine Advocate, Wine Spectator, and Decanter, reflecting their place within serious wine criticism. Calistoga's reputation for bold reds finds expression here through varietal focus and blended exploration.