Rosario Islands, Colombia: The Complete Guide to Islas del Rosario from Cartagena18 min read

The Rosario Islands (Islas del Rosario) are the turquoise-water escape most visitors picture when they book a trip to Cartagena, Colombia. This small Caribbean archipelago sits inside a protected marine national park, roughly an hour by speedboat from the walled city, and it offers everything from quiet hotel beaches to lively beach clubs with DJs. Whether you are planning a Rosario Islands day trip, a family outing, or a night on an island, this guide covers what you need to know: how to get there, when to go, which islands are which, what to pack, and how to pick the right day pass.

If you already know you want to go, you can browse all our Rosario Islands tours and day passes and compare options side by side. If you are still deciding, keep reading.

What Are the Rosario Islands?

The Islas del Rosario are an archipelago of about 27 to 28 small coral islands (the count varies by source, depending on which islets and cays are included) located roughly 45 km southwest of the Bay of Cartagena. Some are large enough to hold hotels, a small village, and walking paths; others are tiny cays with a single private house on them.

The islands are part of the Corales del Rosario y de San Bernardo National Natural Park, a marine protected area first declared in 1977. The park was expanded in 1988 and again in 1996, and its current name reflects the later inclusion of the San Bernardo archipelago to the south. According to Parques Nacionales Naturales de Colombia, the park covers more than 120,000 hectares, almost all of it sea, and protects the most extensive coral platform on Colombia’s Caribbean coast.

Coral Reefs, Mangroves, and Seagrass

What makes Rosario Islands Colombia special is not just the beaches. It is the ecosystem underneath and around them. The park protects three connected habitats:

• Coral reefs growing from shallow water down to about 30 meters, with dozens of coral species and well over 100 fish species.
• Seagrass meadows that act as nurseries for juvenile fish and feeding grounds for turtles.
• Mangrove forests that filter water, protect shorelines, and shelter birds and young marine life. If you want to understand why they matter so much, read our post on the mangroves of Cartagena.

It is one of only a few national parks on Colombia’s Caribbean coast with coral reefs, and it is often described as the country’s main underwater park. That is why the rules about sunscreen, anchoring, and touching coral (more on that below) are taken seriously.

How to Get to the Rosario Islands from Cartagena

Getting to the Rosario Islands from Cartagena is simple: almost everyone goes by speedboat. There is no bridge or road to the archipelago itself (Isla Barú, nearby, is reachable by road, but that is a different trip).

Departure Docks

• Muelle La Bodeguita – the main tourist dock, on the edge of the old walled city, a short walk from the Clock Tower. Most beach clubs and island hotels depart from here.
• Marina Todomar – a private marina in Bocagrande used by several beach clubs. Entry is usually by name list, so your operator registers you in advance.
• Other private marinas – a few clubs use their own departure points. Your booking confirmation always tells you exactly where to go.

Boat Ride and Schedule

The speedboat ride typically takes 45 to 60 minutes, depending on the boat, the sea, and which island you are heading to. Most boats leave between about 7:30 and 9:00 a.m. and return to Cartagena in the mid-afternoon, usually between 3:00 and 4:30 p.m. Arrive at the dock at least 30 minutes early, because check-in lines can be long in high season.

Port Tax and Park Fees

Every passenger leaving from Cartagena’s docks pays a port tax (and, depending on the destination, a national park fee). These are set by the authorities, change from year to year, and in most cases are paid in cash, in Colombian pesos, at the dock. Some day passes include the tax; most do not. Always check your booking details, and bring enough cash for the tax plus tips and extras on the island.

Best Time to Visit the Rosario Islands

The Rosario Islands are a year-round destination, but the experience changes with the seasons.

Dry Season (December to April)

This is the sunniest time of year and the busiest. Skies are mostly clear and rain is rare. The trade-off is wind: strong trade winds often blow from roughly December through March or April, which can make the crossing choppy, especially on the return trip in the afternoon. On very windy days, the port authority may limit or suspend small-boat departures. If you get seasick, sit toward the back of the boat and consider taking motion sickness medication before you board.

Rainy and Transition Seasons (May to November)

From May onward, the wind usually drops and the sea is often calmer and clearer, which is great for snorkeling. Showers tend to come in the afternoon or evening and pass quickly, though October and November are typically the wettest months. Prices and crowds are generally lower outside the peak holiday weeks.

Holidays and Crowds

Christmas, New Year’s, Easter Week (Semana Santa), and the June-July school vacation are the busiest periods. Book early for those dates, especially for small-capacity clubs and hotel day passes.

The Main Islands and Areas to Know

People say “the Rosario Islands” to mean the whole area south of Cartagena, including some places that technically are not in the archipelago. Here is a quick map in words.

Isla Grande

Isla Grande is the largest island in the archipelago. It has no cars, just sandy paths, a small local community, a handful of hotels and eco-lodges, an interior lagoon, and patches of mangrove. It is the base for the famous bioluminescent plankton tours at night, and it is home to classic properties like the San Pedro de Majagua day pass. The Mangata Ocean Club day pass also includes a bike ride on Isla Grande, which is a nice way to see the island beyond the beach.

Oceanarium Island (San Martín de Pajarales)

The Oceanario Islas del Rosario (CEINER) sits on the small island of San Martín de Pajarales, and many people simply call it “the Oceanarium island.” It is a marine conservation and research center that has operated for more than four decades, caring for hundreds of animals from dozens of Caribbean species, growing coral fragments for reef restoration, and breeding species like nurse sharks for release. It is open in the morning and early afternoon, so it is usually visited as a stop on the way to a beach club.

Isla del Rosario, Isla Tesoro, and the Smaller Cays

Isla del Rosario gives the archipelago its name, and small islands such as Isla Tesoro are known for clear water and reef snorkeling. Many of the smaller cays are private, with a single house or a boutique beach club built on them. That is why a lot of the archipelago is experienced through a beach club or hotel rather than public beaches.

Isla Barú and Playa Blanca

Barú is technically a peninsula-turned-island (separated from the mainland by the Canal del Dique), and it sits right next to the Rosario Islands. Its most famous beach, Playa Blanca, has long white sand and is often very crowded with vendors. Quieter private beaches on Barú, like the one at the Sabai Beach Barú day pass, offer a calmer alternative.

Cholón

Cholón is a shallow lagoon near Barú where boats anchor side by side and the party happens in waist-deep water, with music, floating vendors, and food served from canoes. It is popular with groups on private boats. It is fun if you are looking for a party scene, but it is loud and crowded, so it is not for everyone.

Types of Rosario Islands Experiences

Beach Clubs

Beach clubs are the most popular way to do a Rosario Islands day trip. A typical day pass includes the round-trip boat, a welcome drink, lunch, and access to the club’s beach, loungers, and facilities. Some add open bar, water toys, pools, or snorkeling. Vibes range from adults-only party clubs with DJs to quiet, family-friendly spots.

Island Hotels and Resorts

Island hotels sell day passes too, and they tend to be calmer and better suited for families. You get the hotel’s beach, pool, and restaurant for the day, and you can often stay overnight if you want to see the plankton or simply enjoy the islands after the day-trippers leave.

Private Island Houses and Villas

Many cays have private houses that rent by the day or night for groups, usually with a private boat transfer. These work well for celebrations, families, and groups that want total privacy. Availability and pricing vary a lot by date and group size.

Island Hopping

If you cannot choose just one place, island hopping lets you sample several in a day. Our Top 3 Rosario Islands tour visits Bora Bora, Pao Pao, and Islabela in a single day with a bilingual guide.

Snorkeling and Diving

The park has dozens of documented dive sites, and visibility is often excellent on calm days. Many beach clubs offer snorkeling from the beach or a short guided snorkel trip. Certified divers can book dive centers on Isla Grande or in Cartagena. Bring your own mask if you have one that fits well.

Bioluminescent Plankton at Isla Grande

On dark nights, the interior lagoon of Isla Grande lights up with bioluminescent plankton when you move through the water. The effect is strongest around the new moon and on cloudy nights; a full moon can wash it out. Because it happens after dark, you will need to stay overnight on the islands or book a specific night tour.

The Oceanarium

The Oceanarium is a good stop for families and anyone curious about marine life. Some day passes bundle it in. For example, the Isla Gigi day pass includes the Oceanarium entrance plus water toys.

Frigate Birds

Magnificent frigate birds, with their long forked tails and huge wingspans, glide over the islands. At some clubs, like the one on the Pao Pao Beach Club day pass, you can watch them up close, which is a highlight for many guests.

Food on the Islands

Lunch is part of almost every Rosario Islands day pass, and the classic Caribbean plate is hard to beat:

• Fried fish (pescado frito), usually a whole fish, crispy outside and served with lime.
• Coconut rice (arroz con coco), slightly sweet and toasted.
• Patacones, smashed and fried green plantains.
• Fresh salad and, at some clubs, ceviche, seafood, or lobster upgrades.

Some places go further: the San Pedro de Majagua day pass serves whole fish or lobster, and the Fragata Island day pass includes an arepa de huevo, a classic Colombian Caribbean snack. If you have dietary restrictions, tell your operator in advance so the club can prepare.

Rosario Islands Day Passes: Comparison Table

Here is a neutral overview of the day passes we sell, so you can quickly compare the vibe and highlights of each. Details such as ages, plans, and inclusions are on each product page.

How to Choose the Best Beach Club in the Rosario Islands

There is no single “best” option. The best beach clubs in the Rosario Islands are the ones that match your group. Start with these three questions.

If You Want to Party

Look for DJs, open bars, and adults-only policies. The Bora Bora Beach Club day pass is adults-only with a DJ and Balinese beds. The Mantas Beach Club day pass has 2×1 cocktails, a DJ, and a VIP area. The Luxury Beach Club open bar day pass combines an unlimited open bar with VIP beds, and the Islabela Beach Club day pass offers a lively atmosphere with light, lunch, or open-bar plans.

If You Want to Relax

Choose smaller, quieter places with age minimums. The Coralina Island day pass is a 14+ VIP relax experience with a massage. The Dharma Beach Club day pass is a 12+ boutique club with standard and premium options. The Corona Island day pass is adults-only with a small capacity and a Corona beer open bar. For an upscale celebration, the Capri Beach Club day pass includes a panoramic tour, open bar, and a Diamond plan with massage and lobster.

If You Are Traveling with Kids

Family-friendly clubs and island hotels are the way to go. The Ibbiza Beach Club day pass welcomes families and even pets, has a salt-water pool, and departs from Marina Todomar. The Hotel Rosario de Mar day pass is a family island hotel with three plans, including one with open bar for the adults. The Isla del Encanto day pass gives you a private beach, pool, and buffet. And the Paue Beach Lounge day pass is a smart compromise for mixed groups, with a family beach on one side and a party beach on the other.

Kids vs. Adults-Only: A Quick Rule

Always check the minimum age before booking. Some clubs are adults-only, some are 12+ or 14+, and others welcome all ages. Kids under the age limit will not be allowed to board for that club, even if the rest of the group has tickets.

What to Pack for a Rosario Islands Day Trip

• Cash in Colombian pesos for the port tax, tips, and extras.
• Passport or a copy, since docks may ask for ID.
• Reef-safe sunscreen (mineral, without oxybenzone or octinoxate), plus a hat and sunglasses.
• Swimsuit, cover-up, and a light towel (many clubs provide towels, but not all).
• Waterproof phone case or dry bag for the boat ride, which can get splashy.
• Your own snorkel mask if you have one.
• Motion sickness medication if you are prone to seasickness.
• Water shoes for rocky or coral-rubble entries.

Pack light. Boats have limited space, and a small backpack is easier than a rolling bag.

Responsible Tourism in a National Park

Visiting the Rosario Islands means visiting a fragile protected area. The park authority’s rules exist to keep the reefs alive, and they are easy to follow:

• Use reef-safe sunscreen, or better yet, cover up with a rash guard.
• Never touch, stand on, or collect coral. Even a light touch can damage living tissue.
• Do not feed the fish. It changes their behavior and harms the reef’s balance.
• Do not take shells, starfish, or sand as souvenirs.
• Avoid single-use plastics and take your trash back with you.
• Do not eat protected species such as sea turtle or conch, and avoid ordering seafood that is out of season.
• Respect the local community and ask before taking photos of people.

Safety Tips

• Book licensed operators. Avoid unofficial boat sellers at the dock offering cheap last-minute deals.
• Wear your life jacket on the boat. It is required.
• Stay hydrated and limit sun exposure, especially if you plan to drink at an open bar.
• Swim in designated areas and watch for boat traffic near docks.
• Keep valuables to a minimum. Leave expensive jewelry at your hotel.
• Follow weather updates. If the port authority suspends departures because of wind or waves, your operator will reschedule or refund according to its policy.

Frequently Asked Questions About the Rosario Islands

How far are the Rosario Islands from Cartagena?

The archipelago lies roughly 45 km southwest of the Bay of Cartagena. By speedboat the ride usually takes 45 to 60 minutes, depending on the boat, sea conditions, and which island you visit.

Do I have to pay a port tax to visit the Rosario Islands?

Yes. Passengers departing from Cartagena's docks pay a port tax, and some destinations add a national park fee. Amounts change yearly and are usually paid in cash in Colombian pesos at the dock. A few day passes, like Sabai Beach Barú, include it.

What is the best month to visit the Rosario Islands?

December to April is the sunniest, driest period but also the windiest and busiest, so crossings can be choppy. May to September often brings calmer, clearer water with short afternoon showers. October and November are usually the rainiest months.

Can I visit the Rosario Islands with kids?

Yes. Family-friendly options include Ibbiza Beach Club, Hotel Rosario de Mar, Isla del Encanto, Isla Gigi, and Paue Beach Lounge. Always check the minimum age, because some clubs are adults-only, 12+ or 14+.

Can I see the bioluminescent plankton on a day trip?

Usually not. The plankton glows only after dark in the lagoon on Isla Grande, so you need to stay overnight or book a specific night tour. It is best around the new moon or on cloudy nights.

Is it safe to snorkel in the Rosario Islands?

Yes, on calm days with a guide or within the beach club's swim area. Watch for boat traffic, never stand on coral, and use reef-safe sunscreen.

Are the Rosario Islands and Playa Blanca the same place?

No. Playa Blanca is on Isla Barú, next to the Rosario Islands but not part of the archipelago. It is reachable by road and is often very crowded, while the Rosario Islands are reached only by boat.

What is included in a Rosario Islands day pass?

Most passes include the round-trip boat, lunch, and access to the club's beach and loungers. Depending on the plan, you may also get open bar, pool access, snorkeling, water toys, massages, or Oceanarium entrance. The port tax is usually extra.

Plan Your Rosario Islands Day

The Rosario Islands are one of the best reasons to visit Cartagena: clear water, coral reefs, mangroves, fresh fish lunches, and a range of beach clubs and island hotels for every travel style. The key is choosing the right day pass for your group, checking the departure dock and port tax, and treating the park with care.

Ready to go? Compare all our Rosario Islands tours and day passes and book the island day that fits you best. For more background reading, see the Islas del Rosario entry on Wikipedia.

Photo credits (Wikimedia Commons): SebastianGalvis, CC BY-SA 4.0; Jorge Láscar, CC BY 2.0; Ben Bowes, CC BY 2.0.