Paso Robles has serious wines without the formality of some better-known wine regions. Here’s how I’d spend a weekend—including three wineries I particularly love: L’Aventure, Clos Solène and Booker.

After years of visiting Napa Valley, I've learned that the best wine-tasting days aren't about fitting in as many wineries as possible. Here's one of my favorite itineraries—three very different estates, beautiful settings and some memorable Napa reds.