- Emerald Lake Country Club Home - Lake History - Lake Events - Membership - Directions - The Guppy Welcome to beautiful Emerald Lake Country Club, located in the wooded hills of Redwood City. Emerald Lake is a pristine, fresh water lake dedictated to the recreational enjoyment of our lake member families. Swimming, boating and numerous social events are just a few of the features that make ...www.emeraldlakecountryclub.com