Old San Juan Fort Tickets: What $10 Buys and How to Use It
The short version. $10 for an adult, free for children of 15 and under, and the receipt is valid for 24 hours at both Castillo San Felipe del Morro and Castillo San Cristóbal. The park does not accept cash. There is a $35 annual pass for up to four adults, and eight days a year when entry is free.
Which tours carry the fee inside the fare is on the fort tours in Old San Juan listings, and it is set out below.
What the ten dollars actually covers
Both forts, for twenty-four hours, on one receipt. That is the fact this whole page exists for, because almost nobody arrives knowing it and it changes how a visit is planned. You do not need to see both in one afternoon, you do not pay twice, and you can put one fort on the day you land and the other on the following morning.
The figures come from the National Park Service's own fees page for San Juan National Historic Site. They are the park's, not ours, and the park is where you pay them.
Every way to pay, compared
| How | Cost | Covers | Worth it when |
|---|---|---|---|
| Adult daily entrance | $10.00 | Both forts, 24 hours | Almost always |
| Children 15 and under | Free | Both forts | Automatically |
| SAJU annual pass | $35.00 | Up to four adults, one year | Four adults, or two visits |
| America the Beautiful | $80.00 | Federal sites nationwide | You already hold one |
| A tour with entry included | From $54 | Fee inside the fare, plus a guide | You wanted a guide anyway |
| A fee-free day | Free | Both forts | Eight dates a year |
Which of those is right for you?
For two adults on one trip, the $10 daily receipt. Two people seeing both forts pay $20 in total, and the annual pass would cost $35 to save nothing.
For four adults, the $35 annual pass beats four daily receipts by five dollars on a single visit, and by a great deal more if anybody goes back. For a family with children under 16, the arithmetic is even simpler: the children are free, so you are counting adults only.
And if you were going to book a guided walk regardless, the version with the fee inside the fare is about five dollars more than the version without it — which is the calculation set out in full on the decision guide.
Why can't I pay in cash?
Because the park does not take it. The fees page states plainly that this park does not accept cash and takes all major credit cards and contactless payments instead. It is the single most common way to arrive at a gate and not get in, and it catches people who have deliberately drawn out dollars for the day.
When are the free days?
Eight of them in 2026, published in advance by the National Park Service and applying across the whole system: 16 February, 25 May, 14 June, 3 to 5 July, 25 August, 17 September, 27 October and 11 November.
They are busy, for the obvious reason. If your dates are flexible and you would rather have the ramparts to yourself than save ten dollars, avoid them. If you are travelling with four adults, the saving is forty dollars and the crowd may be worth it.
Where do you actually buy it?
At whichever fort you reach first. Both gates sell entry and both accept the same payment methods, and the receipt you are handed is the thing that works at the other one. Keep it. Photograph it, if you are the kind of person who loses paper.
The park address for both is 501 Norzagaray Street, San Juan, PR 00901, and hours are 9:00 am to 5:00 pm daily, closing on Thanksgiving, Christmas Day and New Year's Day.
Which tours have already paid it?
Several listings name the National Park Service entrance fee in their own inclusions, and two of those quote its $10 value. One names it in its exclusions instead, which is equally useful to know. The rest either do not visit a fort or say nothing either way — and where a listing says nothing, neither do we.
The full breakdown is on the fort tours page. The most direct is the El Morro walk, which carries the entry, gives the fort forty-five minutes and meets a short walk from cruise piers 3 and 4.
What the ticket does not buy
Anything outside the two forts. La Fortaleza is not a National Park Service site — it is the governor's working residence, its tours are run by the Governor's own office, and they are free. The Cathedral is an active parish and charges individual visitors nothing. Casa Blanca charges its own admission separately.
Nor does it buy a guided tour of the interior. Rangers run interpretive talks through the day and they are included, but the fort itself is yours to walk at your own pace.
Is it worth doing both forts?
Yes, and the 24-hour receipt is the reason. They are not the same kind of place: El Morro faces the sea from a 140-foot headland with six levels stepping down its seaward face, and San Cristóbal faces the land across twenty-seven acres of tunnels and outworks. One is a view and the other is a puzzle.
If you genuinely only have time for one, take El Morro. It is the image of this city and the approach across the esplanade is the best arrival at any monument in the Caribbean.
Is the annual pass worth it for a family?
Usually not, and the reason is the free children. Entry is free for anyone aged 15 or under, so a family of two adults and three children pays $20 in total on the daily receipt — and the $35 pass would cost more to save nothing. The pass earns its keep only where you have three or four paying adults.
Where it does earn its keep it earns it decisively. Four adults pay $40 on daily receipts and $35 on the pass, and the pass then covers every subsequent visit for a year. For a family with adult children, or two couples travelling together, it is the obvious purchase.
The America the Beautiful pass is a different calculation entirely: at $80 it only makes sense if you already hold one, or if this trip is part of a year that includes mainland national parks.
What happens at the gate
Less than most people expect. There is a desk, you pay by card, and you are handed a receipt. There is no timed entry, no booking system to navigate and no advance purchase to arrange, which is unusual for a site of this profile and is worth knowing if you have been trying to buy tickets online and failing to find them.
What there can be is a queue, and it is at its longest in the middle of the day when several ships are in. The first hour after opening is consistently the quietest, which is one more argument for the nine o'clock start that the tips page recommends for entirely different reasons.
The one thing to do before you go
Check the figures yourself. Everything above is on nps.gov and takes two minutes to confirm, and a good deal of what you will read elsewhere about this city is a decade out of date — including the opening hours, which several sources still give as six o'clock rather than five. Then compare the tours that carry the fee on Old San Juan Tours.
Frequently asked questions
How much is entry to El Morro and Castillo San Cristóbal?
Does one ticket cover both forts?
Do the forts take cash?
Do children pay to enter the forts?
Is the $35 annual pass worth it?
Are there free entry days at the forts?
Tours with the fort ticket already paid
Old San Juan and El Morro Castle Walking Tour
El Morro entry included, forty-five minutes inside, meeting a short walk from the piers.
From $54 per person
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Old San Juan and San Cristobal Castle Walking Tour
A full hour inside Castillo San Cristóbal with the ticket already paid.
From $59 per person
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Old San Juan Walking Tour with Fort: 8+ people group
Five hours with pickup and the San Cristóbal fee both covered. Minimum eight.
From $99 per person
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