4-Star Hotels Taking Steps Towards Sustainability in Castro Valley CA

The Argonaut Hotel, an award-winning boutique hotel in San Francisco's vibrant Fisherman's Wharf district, boasts a rich history and modern appeal. Housed in the historic Haslett Warehouse, the hotel's character shines through its exposed brick walls, Douglas Fir beams and Barbary Coast atmosphere. Guests can enjoy luxurious accommodations, breathtaking views of the San Francisco Bay, Alcatraz and the Golden Gate Bridge, eco-friendly amenities and easy access to popular attractions. The on-site Blue Mermaid Restaurant offers award-winning chowders in a charming setting, while the hotel's commitment to the environment is showcased by its eco-friendly certifications. With bicycle rentals and over 10,000 square feet of event space, the Argonaut caters to a variety of guest needs and preferences.

Casa Madrona Hotel and Spa is a luxurious boutique hotel with a blend of contemporary and Victorian style located minutes away from San Francisco, Marin County and Muir Woods. The hotel's Alexandrite Suite is the ultimate luxury guest experience with a gourmet kitchen, private office, fitness center and a state-of-the-art media wall. The suite features an outdoor living area and the master suite offers picturesque views of the harbor and Belvedere peninsula. Guests can request a travel planner to cater to their needs, and the hotel offers customized amenities such as spa treatments, wine tasting, yacht excursions and yoga on the deck. The hotel can be adapted for corporate retreats, destination weddings and multi-generational family getaways, but room sizes, configurations and views may vary from the standard descriptions due to its historical features and unique layout.