Photo: Frank Schulenburg, CC BY-SA 4.0 Free viewpoints in San Francisco
Photo: Frank Schulenburg, CC BY-SA 4.0 
Photo: Pi.1415926535, CC BY-SA 3.0 Lands End Trail
Free, alwaysAlamo Square
Free, always
Photo: InvadingInvader, CC BY-SA 4.0 Twin Peaks
Free, always
Photo: US-Army, from the National Archives, Public domain Crissy Field
Free, always
Photo: BradleyPelton, CC BY-SA 4.0 Baker Beach
Free, always
Photo: Ɱ, CC BY-SA 4.0 Fort Point
Free at certain times
Photo: Samlcfc at English Wikipedia, CC BY-SA 3.0 Filbert Steps
Free, always
Photo: Alexwennerberg, CC0 Dolores Park
Free, always
Photo: Ryan Schwark, CC0 Coit Tower
Free outside, paid inside
Photo: Fine Arts Museums of San Francisco (FAMSF), Public domain de Young Hamon Tower
Free, alwaysBernal Heights Park
Free, always
Photo: Mickey Løgitmark, CC BY 3.0 16th Avenue Tiled Steps
Free, always
Photo: Robert Campbell, CC BY-SA 3.0 Presidio Tunnel Tops
Free, always
Photo: Viriditas, CC BY-SA 3.0 Fort Funston
Free, alwaysFisherman’s Wharf
Free, always
Photo: Bob Collowan, CC BY-SA 4.0 Embarcadero
Free, alwaysIna Coolbrith Park
Free, always
Photo: Pi.1415926535, CC BY-SA 3.0 Grand View Park
Free, always
Photo: Fred Hsu (Wikipedia:User:Fredhsu on en.wikipedia), CC BY-SA 3.0