[teegaw]

If you're in good enough shape, I highly recommend walking the Crosstown Trail [1]. You will see beautiful parts of the city that most people who live there have never seen before, as well as the more "classic" vistas and landmarks like Golden Gate Park, Grandview Park, The Presidio and more. There are also plenty of opportunities to stop along the way in different neighborhoods for a bite to eat or a beer/coffee depending on what you're in the mood for. Definitely start on the southeast side and work your way northwest. Note: you don't need to go all the way to Hunters Point, it's mostly just a view of Candlestick Park, which has been torn down for years. Visitacion Valley -> Ocean Beach would suffice.

[1] https://crosstowntrail.org/plan-your-trip/