Mono Lake Tufa State Natural Reserve in California is unlike any other lake I've been to over the years. It's considered one of the oldest lakes in North America and has no outlet to the ocean. The saline soda lake is twice as salty as the ocean and contains the most active tufa formations in the world. The area is home to critical nesting habitat to nearly 2 million birds during their annual migration. Naturally, it's a great place to spend the day in the outdoors with a spectacular view of the Eastern Sierra.