Our family of 4 went on a 4 hour tour with Simon as our guide this morning. It was exactly what we wanted: informative, geared to our personal interests, at our own pace, friendly and informal. The cost was very similar to going on any other tour but it was soooooo much better than a larger group tour. We would all highly recommend this tour and Simon which I booked through the Viator website. And even though the car was squeezing it was very comfy and kept us warm!