9 Best Things to do in Old San Juan, Puerto Rico

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There are so many amazing things to do in Old San Juan, but I want to tell you about the cats first.

Old San Juan has cats everywhere—lounging on the blue cobblestones, draped across the walls of the old city fortifications, slow blinking at tourists from the shade of a bougainvillea. Nobody seems entirely sure who they belong to, and the answer is basically: everyone and noone. They’re a fixture of the place.

My husband and I spent an embarrassing amount of time crouched on sidewalks making friends with them. I have no regrets.

A tortoiseshell cat wearing a bow tie collar sits on a brick ledge and glances sideways, with palms, round hedges, and a pale green colonial building marked "Calle Clara Lair" behind it.

An orange-and-white cat with a black collar lounges on a brick ledge seen from behind, watching a tortoiseshell cat on the grassy ledge beyond.

That’s Old San Juan in miniature: beautiful, slightly surreal, full of things that don’t quite fit anywhere else.

It’s one of the oldest European-established cities in the Americas—a walled city built on a small island connected to the main island of Puerto Rico by bridges, painted in yellows and pinks and blues that have been fading and repainting themselves for centuries.

It’s also a colonial city, built by the Spanish, taken by the Americans in 1898, and now one of the most visited tourist destinations in the Caribbean.

We went for our honeymoon in late April and spent a couple of days in Old San Juan before heading east. We weren’t trying to see everything. We were taking it slow, following recommendations from a friend who grew up in Puerto Rico, and letting the city do what it does.

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Things to do in Old San Juan

Wander Old San Juan

Cobblestone street in Old San Juan lined with turquoise, pale yellow, periwinkle, and mint colonial buildings with black iron balconies, a lantern streetlamp, and a blue planter in the foreground.

A tree-lined cobblestone street in Old San Juan, with tall branches arching overhead between pastel buildings, two people walking ahead, and pigeons in the foreground.

One of the best things to do in Old San Juan costs nothing and requires no planning: walk. The old city is small enough to cover on foot in a day and dense enough that you’ll turn a corner and find something unexpected every fifteen minutes.

The streets are narrow and paved with blue-gray adoquines—iron-rich slag bricks brought over as ballast on Spanish ships, which gives Old San Juan its distinctive blue-tinted cobblestones and a slightly otherworldly feel underfoot.

Get away from the main tourist drag on Calle Fortaleza and Calle San Francisco and into the quieter residential streets. Find a plaza and sit. Let a cat lead you somewhere.

The city will reward you. There are buildings here that have been standing since the 1500s, which is difficult to comprehend if you’ve grown up in the American Midwest the way I have.

The old city gets crowded when cruise ships are in port, which happens most days during peak season. If you want a quieter version, go early in the morning or in the evening after the day-trippers leave.

Tour El Morro (Castillo San Felipe del Morro)

El Morro's lighthouse above the fortress's weathered stone walls, with the US, Puerto Rico, and Spanish Cross of Burgundy flags flying beside it.

El Morro sits at the northwestern tip of Old San Juan and is one of the most dramatic places I’ve ever walked around. Built by the Spanish beginning in the 1500s to defend the harbor from naval attack, it’s a six-level fortress that drops straight down to the sea, with views stretching out over the Atlantic in every direction.

The wide expanse of grass along the city walls leading up to it is where locals come to fly kites (you can buy one nearby and join them).

El Morro is also, to be direct about it, a military fortification built by an empire to hold onto a colony. The same Spanish empire that brought enslaved Africans to Puerto Rico and extracted the island’s wealth for three centuries.

The fortress is stunning and worth several hours of your time when you’re looking for things to do in Old San Juan, and knowing what it was built for makes it more interesting rather than less. The National Park Service manages it now (which is its own layer of complexity given that Puerto Rico is a US territory), and the on-site interpretive materials don’t entirely shy away from the history.

A narrow stone walkway between weathered walls leads to one of El Morro's domed sentry boxes, a small window slit visible inside.

Visitors climb a wide stone staircase inside El Morro, beside arched vaults and massive moss-streaked walls.

Admission is $10 for adults, valid for both El Morro and Castillo San Cristóbal, the other fort at the opposite end of the city. Go early if you can. It opens at 9am and gets crowded by midmorning, especially with cruise ship passengers. Bring water and sunscreen. The grounds are exposed, and the Puerto Rican sun is serious.

Visit Cuartel de Ballajá and the Instituto de Cultura Puertorriqueña

For a deeper look at Puerto Rican history and culture, the Cuartel de Ballajá (a former Spanish military barracks near El Morro) now houses the Museum of the Americas, with collections covering the cultural history of the Americas and the Caribbean.

Next door, the Instituto de Cultura Puertorriqueña is the island’s main cultural institution, dedicated to preserving and promoting Puerto Rican arts, history, and identity. Both are worth time if you want to understand what you’re actually walking through when you wander the old city, or if you’re just looking for things to do in Old San Juan that are inside!

Grab a Drink at La Vergüenza and Look Over La Perla

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A post shared by La Vergüenza PR Chinchorro (@laverguenzaprchinchorro)

Here’s a local tip that doesn’t make most guidebooks: La Vergüenza Puertorrican Chinchorro is a bar right on the edge of the city walls, in front of the La Perla neighborhood, with an unobstructed view of the sea.

A chinchorro is an informal Puerto Rican bar or roadside spot—the kind of place that’s less about the drinks on the menu and more about sitting somewhere beautiful with a cold drink and nowhere to be.

Have a drink here (or smoke a cigar), and watch the Atlantic. It’s one of those places locals know and tourists usually miss, but it makes for one of the best things to do in Old San Juan.

La Perla itself is worth a word–

You’ll see it from the city walls: a neighborhood built on the narrow strip of land between the walls and the sea, historically a working-class community that has been sensationalized and misrepresented in equal measure. It became internationally famous after the “Despacito” music video was filmed there, which brought a wave of tourism the neighborhood neither asked for nor necessarily benefited from. It’s a real place where real people live.

Walk past it respectfully; La Vergüenza, right on its doorstep, is a good vantage point.

Dance at Plaza Dársenas on a Saturday night

If you’re in Old San Juan on a Saturday evening, Plaza Dársenas (near the cruise ship terminals at the edge of the old city) comes alive with bolero music and dancing. Locals dance with visitors, bands play, and it’s one of those genuinely spontaneous third spaces that you can’t manufacture and won’t find in most travel guides. When my friend told me about it, I nearly cried knowing we wouldn’t be there on Saturday.

Buy a piragua

Buy a piragua from a street cart. A piragua is Puerto Rican shaved ice, shaped into a cone and flavored with fruit syrups like tamarind, passion fruit, coconut, and cherry. Sold from colorful carts around the city, often near El Morro, they cost a dollar or two and are exactly right for a hot afternoon. You’ll think about them long after you get home.

Where to Eat and Drink in Old San Juan

Restaurante Raíces

A smiling man in a pink polo and cap sits behind a wooden pilón heaped with steak at Raíces restaurant. A painted countryside mural, a Puerto Rican flag, and a Bacardí table card are beside him.

Close-up of seasoned steak pieces sprinkled with dried herbs, served in a polished wooden pilón, with a Raíces menu and a metal cup behind it.

If you eat one meal in Old San Juan, eat it at Restaurante Raíces. Yes, it’s a little touristy (there are lines out the door most days), but those lines exist for a reason. The atmosphere alone is worth it: the interior is designed like a recreation of an old Puerto Rican farm, all wood and greenery and beautiful murals.

If you haven’t tried mofongo yet, this is the place to do it. Mofongo is the quintessential Puerto Rican dish: mashed fried plantains stuffed with protein and topped with broth or sauce, and Raíces does it right. We ordered ours with skirt steak: crispy on the outside, tender in the middle, the whole thing arriving in a portion that should have been intimidating but somehow wasn’t. The spiced colada and the house mojito were both excellent alongside it.

Try the original piña colada at Barrachina

Appetizer platter at Barrachina in Old San Juan: plantain cups filled with chicken, shrimp, and seafood, plus fried calamari, empanadillas, croquettes, and two dipping sauces, with two tropical cocktails topped with pink paper umbrellas.

Here is a fact I did not know before this trip: the piña colada was invented in Puerto Rico. Specifically, according to Barrachina, a bar and restaurant on Calle Fortaleza, it was invented there in 1963. (The Caribe Hilton also claims credit, saying their bartender Ramón “Monchito” Marrero invented it in 1954. I went to Barrachina. You can make your own choices about who to believe.)

Barrachina is touristy and knows it. There’s a huge sign out front, the bar is usually busy, and yes, they know exactly what you’re there for. None of that matters once the drink arrives. We also got a huge appetizer sampler that ended up serving as dinner for both of us, which was either very efficient or a sign that we were more tired than we realized.

There’s an open-air courtyard in the back, lovely when the humidity isn’t unbearable (we opted for indoors). Order the classic piña colada, sit down, and feel absolutely no guilt about being precisely the tourist the place is designed for. Some things are touristy because they’re genuinely worth doing, and this is one of those things to do in Old San Juan that you don’t want to miss.

Don Ruiz Coffee

Hand-painted mural of red coffee cherries, a white coffee blossom, and green leaves beside a corrugated metal wall.

For coffee, Don Ruiz is the answer. Puerto Rico has a serious coffee culture (the island’s mountain regions have been producing coffee for centuries) and Don Ruiz is one of the best places in Old San Juan to experience it properly. They source from Puerto Rican farms and take the whole thing seriously without being insufferable about it.

Go in the morning before El Morro, or as an afternoon stop when you need to sit somewhere quietly.

Where to Stay in Old San Juan

Wide view across a turquoise rooftop pool to Old San Juan's pastel buildings, flat white rooftops, and the harbor beyond.

Old San Juan has a huge range of locally owned guesthouses and boutique hotels — enough that there’s no good reason to default to a chain.

We stayed at La Terraza de San Juan and would go back without hesitation. It’s a small, locally owned property right in the middle of the old city—and I mean that literally. You step out the door and you’re already there. The colonial architecture is beautiful, the rooftop terrace has an infinity pool and views that make you want to stay up there indefinitely, and the whole place has the feeling of somewhere that belongs in Old San Juan rather than having been dropped into it.

A few other options we seriously considered:

Alma San Juan – has a strong reputation for design and hospitality and sits right in the heart of the old city
CasaBlanca Hotel – a historic property that feels genuinely embedded in the neighborhood
352 Guesthouse – a smaller, more intimate option for travelers who want something closer to a local home-stay feel.

All four are locally owned and independently operated. I’d start with any of them before reaching for a chain—not just on principle, but because the experience is genuinely better and your money stays on the island.

I’ll have a full where to stay in Old San Juan post up soon with more detail on each, as well as tips on how to choose where to stay in San Juan.

Practical tips for visiting Old San Juan

A smiling woman in clear glasses and a light blue dress stands at a stone seawall, with the water and Old San Juan's fortified city walls behind her in soft evening light.

The pink facade of the Casa Museo Felisa Rincón de Gautier on Caleta de San Juan, next to a pale blue building with white iron balconies, partly framed by leafy trees.

How much time to spend: A full day is enough to see the main sights and wander properly. Two days lets you slow down, do both forts, sit somewhere for a long lunch, and catch Saturday night at Plaza Dársenas if your timing works out. If you’re using San Juan as a base for the rest of the island and taking day trips, plan for more nights.

Getting around: On foot. The old city is small, and the cobblestones make it unsuitable for anything else. Use rideshare or taxi from the airport and between neighborhoods outside the old city. It is NOT worth renting a car for the time you’re in San Juan.

Cruise ship crowds: Old San Juan gets significantly more crowded when ships dock, which is most days in peak season. Check the cruise ship schedule for your dates and plan your El Morro visit for early morning if possible.

The cobblestones: Beautiful and also uneven. Wear shoes you can actually walk in. This is definitely not the place for sandals with no grip or any kind of heel.

When to go: We went in late April going into early May and found it close to ideal, with a few scattered showers that passed quickly, manageable crowds, and prices noticeably lower than the winter peak. Shoulder season sweet spot (mid-April through June or November) is worth targeting if you can be flexible on dates.

The Best Things to Do in Old San Juan, Puerto Rico (From Someone Who Took It Slow)