Union Square, Embarcadero (San Francisco), and Fisherman's Wharf are the most popular attractions in San Francisco if you're in need of something to do during your stopover. Union Square, Embarcadero (San Francisco), and Fisherman's Wharf can be visited by traveling about 18.7 km, 19.6 km, and 21.0 km respectively from San Francisco. Travellers can book a car rental at San Francisco for about S$ 56 per day to make their sightseeing more efficient.