Fort Mason, once known as San Francisco Port of Embarkation, US Army, in San Francisco, California, is a former United States Army post located in the northern Marina District, alongside San Francisco Bay.You might have heard of Dolores Park, but have you heard of Fort Mason? Obviously smaller the view’s great!  How do we get here? We prefer you take a 30-minute walk from the hostel, passing by Columbus Avenue to see Little Italy with your mates.