At Hilton San Francisco Union Square, guests enjoy an outdoor pool, a 24-hour gym, and free WiFi in public areas. If you drive, self parking is USD 74.10 per night, and there's also limo/town car service. The front desk has multilingual staff on hand 24/7 to help with securing valuables, tours or tickets, and dry cleaning/laundry. If you like to take your furry friend along on your adventures, this pet-friendly property offers food and water bowls. Additional amenities include meeting rooms, conference space, and a business center.