This page explains how Project SF researches, verifies and updates what it publishes, so you can judge how much to trust it.
Where our facts come from
Primary sources first, every time. Prices, opening hours and closures come from the venue or agency’s own website: SF Rec and Park, the National Park Service, the Presidio Trust, SFMTA, BART, SFUSD, the museums and the restaurants themselves. Where a figure comes from somewhere else, such as weather normals from the National Weather Service, we say so on the page.
How we verify
Every price, address, opening time and event date is checked against an official source before it is published, and the month of that check is printed at the foot of each guide. When we cannot confirm something, we leave the number out and tell you to check rather than guessing. When a source contradicts itself or is out of date, we say that too, which is why several of our guides warn that a place is closed even though other sites still list it as open.
What we will not do
- No payment for inclusion, position or a good review. Nobody can buy their way into the directory or a guide.
- No affiliate links or advertising at present. If that ever changes it will be disclosed here and labelled in place.
- No recycled listings. If a business has closed, it comes out, even if it is famous.
- No invented detail. If we have not checked it, we do not print it.
How we choose what to recommend
Family-friendliness first: all ages, no bars, nothing that needs a 21-and-over wristband. After that, we favour places that are free or cheap, that are reachable on Muni, and that locals actually use. We say plainly when something popular is not worth your money.
Images
Photographs are royalty-free images licensed for this use, credited to the photographer where the licence asks for it. As a matter of policy we do not publish photographs of identifiable children.
How this site is produced
Research and drafting are assisted by AI tools. Every fact is then checked against a primary source and every page is reviewed by a person before it goes live. We publish the date of that check so you can see how fresh it is.
Corrections
If something is wrong, tell us. We correct errors as soon as we can confirm the right answer, and we update the fact-checked date on the page when we do. Significant corrections are noted on the page itself.