< San Francisco The Marina district is in the north section of San Francisco, east of the Presidio, west of Russian Hill and North Beach, and immediately north of Pacific Heights and Divisadero hill. It is largely a flat area, built on sediment and sand rather than bedrock which makes it largely vulnerable. It was the focus of most of the damage (and media attention) in the Loma Prieta Earthquake of 1989.
With six lanes, going east-west, Lombard Street is the main road, considered (along with north-south Van Ness) to be part of Highway 101. The winding section of Lombard street is due east, on Russian Hill. Chestnut St is the business section of the Marina - considered among the most posh of San Francisco's neighborhoods, stay along Lombard street is actually quite economically priced, considered in relation to the average (high) cost of living in the neighborhood.
There is no freeway north, through San Francisco. On the West side, take 280 to 19th avenue through Golden Gate Park, Park Presido, and at Doyle Drive choose to go east to the Marina proper or west to the Golden Gate Bridge.