Tips for Visiting Old San Juan

Hours, prices and access verified by the Old San Juan Tours team — last checked 2026-09-09

Everything here that catches people out is small, cheap to fix and almost never mentioned before they arrive. Six of them, then the detail. Guided options that remove most of these entirely are on the walking tours of Old San Juan listings.

Bring a card, not cash

The National Park Service does not accept cash at either fort.

Start at nine

The shade runs out long before the queue does.

Keep the fort receipt

It is valid for 24 hours and it covers both fortifications.

Wear closed shoes with grip

The adoquín cobbles are uneven and slick after rain.

Carry photo ID

La Fortaleza turns away anyone over 18 without it.

Work backwards from all-aboard

On a ship day the deadline is the plan, not the distance.

The heat is the whole planning problem

It is not the hills and it is not the distance. In August the National Weather Service's 1991–2020 normals for San Juan give an average daily maximum of 89.1°F and an average minimum of 77.8°F, with 12.8 days at or above 90°F in the month. Travellers on these walks write about heat more than about anything else, including one who completed the El Morro walk on a day above 100°F because the guide paced it and timed the water stops.

What to do about it is simple. Take the earliest start you can get, carry water even on the tours that provide it, and treat any offer of shade as the plan rather than an interruption. If walking in that is genuinely not for you, the seated options exist for exactly this reason.

The cobbles, and what to put on your feet

The blue-grey blocks underfoot are adoquines, cast from furnace slag in Spain and carried here as ships' ballast before being laid through these streets. They are the reason the old city photographs the way it does and the reason people turn ankles. One operator states it outright in its own booking notes: proper shoes required, no sandals.

The streets also climb, more steeply than photographs suggest — one two-star review here is entirely about that. Plan the route downhill from the forts towards the water rather than up, and you will enjoy the same ground considerably more.

The forts do not take cash

This is the single most common way to arrive at a gate and not get in. The park's own fees page states that it does not accept cash and takes all major credit cards and contactless payments. Adult entry is $10, children of 15 and under go free, and the receipt works at both forts for 24 hours.

Do the arithmetic before you queue. Two adults seeing both forts pay $20 in total, not $40, because of the 24-hour rule. Four adults across a week are better off with the $35 annual pass. And if you would rather skip the gate altogether, the fort tours here have already paid it.

If you are here for the day off a ship

The good news is structural: piers 3 and 4 are inside the old city, so unlike most cruise ports there is no transfer to build into the plan. Two of the walks meet within a few minutes of them. The Pan-American pier is the exception and is not within walking distance, which one operator states plainly in its own meeting instructions.

The failure mode is not distance, it is optimism. Work backwards from your all-aboard time, subtract an hour of slack, and book something that finishes inside that. A four-hour tour that leaves the walls is the wrong shape for a six-hour call.

Dress codes, ID, and the two buildings that enforce them

Churches on the walking routes ask for conservative dress and one operator flags it in its booking notes, so cover your shoulders if a cathedral is on your morning. La Fortaleza is stricter: appropriate attire is required, and every visitor aged 18 or over must present valid photo identification or a current passport at security. Anyone without it cannot join the tour.

What to carry, and what it is for

Short list, and every line on it is here because of something above.

Bring	Because
A credit card	The forts take no cash at all
More water than you think	The walk is exposed for most of its length
Closed shoes with grip	Adoquín cobbles, uneven dry and slick wet
Photo ID	La Fortaleza turns away over-18s without it
Something to cover your shoulders	The churches on these routes ask for it
A light waterproof, May to November	Rain here is heavy and brief

Two operators list hats, sunglasses and sunscreen in their own excludes columns. They are telling you what to bring rather than what they have removed from the fare, and it is worth reading them that way.

What time to start

Nine in the morning, for three separate reasons that all point the same way. The forts open at nine and are quietest in the first hour. The heat is at its most manageable. And a morning walk leaves the afternoon free to go back to whatever you decided you wanted more of — which is what reviewers here say they wish they had planned for.

Frequently asked

Do the forts take cash?

No. The National Park Service states plainly that this park does not accept cash, and takes all major credit cards and contactless payments instead. It catches more people out at the gate than any other rule here, so bring a card even if you are carrying dollars for lunch.

How hot does it get, and how do the tours handle it?

Hot enough that heat management is the thing reviewers praise most often. Guides on these walks time water breaks, find shade at each stop and set the pace for the slowest walker; one traveller using a cane completed the El Morro walk on a day above 100°F for exactly that reason. Book a 9am start where you can.

What are the blue cobblestones in Old San Juan?

They are adoquines, blocks cast from furnace slag in Spain and carried over as ships' ballast before being laid through these streets. They are what gives the old city its blue-grey cast in photographs. They are also uneven and slippery when wet, which is the practical half of the answer.

What should I wear for a walking tour here?

Closed shoes with grip, because the adoquín cobbles are uneven and polish up slick in rain. One operator asks for proper shoes and no sandals outright. If a church is on your route, cover your shoulders and knees, and note that La Fortaleza enforces its own dress code at the gate.

Which buildings enforce a dress code?

Two, and both matter. The churches on the walking routes ask for conservative dress, and one operator flags it in its own booking notes. La Fortaleza requires appropriate attire and valid photo ID for anyone 18 or over, and will turn away a visitor without it.

Is the old city walkable if I have limited mobility?

Parts of it are, and the streets are steeper than photographs suggest. Three listings declare wheelchair access, including the hour-long photo walk, and several more declare stroller access without step-free access. The golf-car tour removes the hills entirely and publishes a step to help you on and off.

Next: the hours and the ticket detail on visiting Old San Juan, the layout on the map page, or compare the guided options on Old San Juan Tours.