Discover California with Greystone Hotels. From San Diego to San Francisco, California offers many exciting things to do and see - beautiful landscapes, diverse culture, rich history, fashion, film and arts. Visit memorable attractions such as the beaches of San Diego, the nightlife of Los Angeles and the iconic cable cars of San Francisco. Greystone Hotels offers a unique collection of hotels in California located in San Diego, La Jolla, Los Angeles, Palo Alto, and San Francisco. Each hotel is perfectly located near the top attractions and fun things to do in California. Experience comfort, style, and personalized service at our unique boutique hotels in California.