City on a Hill produces wines from Swartland, the Western Cape's dynamic region known for old-vine Grenache and Cinsault. The winery's portfolio centers on these Mediterranean varieties, which thrive in the area's warm, dry climate and granite-based soils. Song of Ascents, a Cinsault, and Thousand Hills, a Grenache, represent the core of the range and have drawn attention from major critics including Decanter, Wine Advocate, Wine Enthusiast, Wine Spectator, and Falstaff. Both wines demonstrate the region's capacity for structured, age-worthy reds. The winery also produces a Red blend. Swartland has emerged as a source of distinctive, terroir-driven wines that balance ripeness with acidity and mineral tension—qualities evident in City on a Hill's approach to these classic South African varieties.