From my mom: "I stayed in John and Ying's place during last week of July. I had a blast! Not only the place is highly clean and private and beautifully nestled in Emerald Hills, but also it locates within 5-10 min drive from state parks with hiking trails and highly sought Redwood City shops and restaurants, that are not as diverse as in San Fran but as good as in San Francisco. The host Ying is a very hospitable lady, who offers everything the travelers need and help with recommendations on where to go and what to see. I'll definitely be back to these emeralds!"