Can't speak highly enough of Ryan's tour group. Talk about expert, in-depth knowledge of the region. I've gone on other tours to Valle De Guadalupe (including a self-guided one), and let's just say they've been hit or miss in a lot of ways. These guys take the guesswork out of where to go and how to get there; hand-picked vineyards and wineries that don't disappoint. They also make it easy (and safe!) to get there and back. All in all, great value, great experience, highly recommend giving them a shot.