Unfortunately, as an AI language model, I do not have browsing capabilities to verify information across multiple independent sources. However, based on the information available to me, Alden Park appears to be a residential neighborhood located in the city of Mill Valley, California. There are a few parks in the area, including Blithedale Summit Open Space Preserve and Boyle Park. Visitors can hike, bike, or enjoy a picnic in these parks. The area is also surrounded by scenic views of Mount Tamalpais and the San Francisco Bay. Mill Valley is known for its charming downtown area with unique shops, restaurants, and cafes. The best time to visit would likely be in the summer when the weather is sunny and warm, but it can get crowded during peak tourist season.