Take a walk on the trail on Lands' End - From Sutro Heights to Sea Cliff. Start with Breakfast at Louis' Diner above the Sutro Baths Ruins before you set out.
If you're feeling ambitious, continue on through Sea Cliff to The Presidio, Baker Beach, under the Golden Gate Bridge anchorage, then Crissie Field. At Crissie, refresh yourself with a latte at the Warming Hut.
Mind Blowing views the whole way no matter what the weather.