Phirky Guides · Membership Math
Which family membership actually pays off?
One admission for a Bay Area family of four runs $60–$260 at the big venues — so the right membership pays for itself in two or three visits, and the wrong one is a $300 fridge magnet. Here's the math, tabulated, with every link going to the venue's own membership page.
Prices verified July 30, 2026 on each venue's site · programs change — always confirm before buying
| Venue | Best family tier | Covers | Breaks even at | Worth knowing |
|---|---|---|---|---|
| San Francisco Zoo → | Family — $199/yr | 2 adults + 3 kids | ~2 family visits | Unlimited admission, exhibit previews, local-business discounts (C.A.T.S.) |
| California Academy of Sciences → | Family — $329/yr | Family level (see tiers) | Their own words: "pays for itself in less than three visits" | Unlimited daytime admission, member-hour early entry, 10% store/caféFamily Plus $419 adds guest flexibility |
| Bay Area Discovery Museum (Sausalito) → | Gold — $259/yr (their "most popular") | 3 adults + 3 kids | ~2–3 visits for a family of 4 | Member hour 9–10am, 2 guest passes, ASTC reciprocal (300+ museums), $50 off birthdays, SF Zoo discountBronze $159 (1+1) · Diamond $349 (5+5) · Family Access $45 for qualifying households |
| Exploratorium → | See current tiers | — | Roughly two family visits, typical of SF majors | Unlimited admission + member eventsTheir site limits automated price checks — confirm on the page |
| Aquarium of the Bay (Pier 39) → | See current tiers | — | — | Unlimited admission, member eventsConfirm current pricing on their page |
💡 The $0 alternative most parents never use
Your free library card unlocks free passes to many of these exact venues through Discover & Go — plus free state-park entry with the Parks Pass. If you'd visit each place once or twice a year, the library beats every membership on this page. See every free program →
Then let us build the day around it
Membership picked? Tell the planner your kids' ages and city — it builds the whole day (nap windows, lunch, backup plan) around your new home base. Plan a day in 30 seconds →