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ShouldIBook does not make an undated book-now or wait call for Official Alcatraz Island Prison Tour and San Francisco Bay Cruise. Choose your travel date and party size so the answer can use direct date evidence.
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More boat tours and cruisesHow evidence worksBooking answer
ShouldIBook does not make an undated book-now or wait call for Official Alcatraz Island Prison Tour and San Francisco Bay Cruise. Choose your travel date and party size so the answer can use direct date evidence.
The current page retains 273 retained availability observations, and 273 retained price observations. The latest substantive activity evidence was checked Jul 21, 2026, 9:48 AM.
Before deciding
These visible answers match the clean page's structured guidance. Broad evidence still cannot establish your exact date, party fit, or live provider total.
ShouldIBook does not make an undated book-now or wait call for Official Alcatraz Island Prison Tour and San Francisco Bay Cruise. Choose your travel date and party size so the answer can use direct date evidence.
Start by checking at least 12 days before Official Alcatraz Island Prison Tour and San Francisco Bay Cruise. 3 retained availability-loss observations across 3 target dates support that book-ahead pattern. It is an observed planning signal, not a guarantee that every departure will sell out then; verify your exact date next.
The current page retains 273 retained availability observations, and 273 retained price observations. The latest substantive activity evidence was checked Jul 21, 2026, 9:48 AM.
Your date
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Listing comparison
Paste a different Viator activity. This tracked activity family stays the baseline, and your current date and party carry into the result.
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Availability calendar
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Continue comparing
Fresh alternatives with current evidence in San Francisco, ranked through same-category peers, useful neighboring categories, and then clearly labeled destination fallbacks. Direct date evidence breaks ties within each tier. Other options from this same Viator product family are omitted.
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Compare evidenceHistory
Price
$140.60
Latest stored row.
Rating / reviews
4.28 / 317 reviews
Demand context.
Cancellation signal
Not observed
Not extracted.
Booking provider
Viator
Tracked outbound click.
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Latest scrape
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No. The broad activity evidence does not prove that Official Alcatraz Island Prison Tour and San Francisco Bay Cruise is available for your travel date, that enough seats fit your party, or that a stored price still applies. Run the exact-date check, then confirm live capacity and terms with the provider.
ShouldIBook last observed $140.60 at Jul 21, 2026, 9:48 AM. That is a stored starting-price observation, not a live quote or a total for your party; confirm the current total and terms with the provider.
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546 substantive observations / $65 / checked Jul 21, 2026, 9:49 AM
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77 substantive observations / $129 / checked Jul 21, 2026, 9:46 AM
Compare evidenceBoat tours and cruises
546 substantive observations / $88 / checked Jul 21, 2026, 9:49 AM
Compare evidenceTarget date
Pick a date.
Availability calendar
Latest stored adult availability for future target dates we have actually checked. “Open” means at least one scraped variant is available; omitted dates are unknown, not closed.
Showing the next 62 dates in the observed range on this clean overview. Choose your activity date above to inspect its full dated evidence window; 29 later dates are omitted here to keep the page concise.
Stored scrape observations, not live availability.
Latest scrape
Jul 21, 2026, 9:48 AM
$140.60. Available.