Adventure 5 Rosario Islands with Snorkel and plankton in Cartagena de indias

Adventure in the Rosario Islands: Snorkel, Plankton, and More

Planning a full-day excursion from Cartagena that hits the highlights of the Rosario Islands? This tour, costing around $120 per person and lasting about 12 hours, offers a mix of cultural stops, snorkeling, beach relaxation, and an unforgettable plankton experience. Led by knowledgeable guides like Hector and Giuseppe, it promises a comprehensive adventure through some of Colombia’s most beautiful waters and islands.

What we love most about this trip is the chance to see the sunken plane wreck—a highlight for snorkelers—and the chance to float among the glowing bioluminescent plankton at night. Plus, the stops at lively Cholón and Playa Blanca give a taste of local seaside life and pristine white sands. That said, the day can be quite long, and some parts might feel rushed or less impressive depending on weather and crowd conditions.

One major consideration is the quality of organization and communication—some travelers have found the schedule and guides inconsistent, and the experience at certain stops varies widely. If you’re looking for a relaxed, perfectly curated day, this might not be your best choice. But if you’re eager for a full immersion into the islands’ natural beauty and vibrant local scene, this tour offers a lot of bang for your buck. It suits travelers who don’t mind long days, enjoy snorkeling, and want a lively, authentic experience.

Key Points

• Diverse Stops: The tour includes visits to historic forts, coral reefs, and lively party islands.
• Snorkeling & Plankton: Equipment provided, with the chance to see colorful fish, a sunken plane, and glowing plankton.
• Cultural & Local Flavor: Stops at Cholón and Playa Blanca give insight into local island life.
• Group Size & Comfort: Capped at 22 travelers, although some reviews mention crowded boats and rough weather.
• Food & Drinks: Lunch and snacks included, but some reviews note the quality varies.
• Timing & Weather: It’s a long day, often affected by weather—prepare for rain or sun, and long waits.

Exploring the Rosario Islands Tour in Detail

Starting the Day: Pickup and Early Departure

Your day begins early, with hotel pickup in Cartagena, most likely outside the Walled City or Getsemani areas. The tour starts around 8:00 am, giving you a head start on a long day. The transportation is air-conditioned, which is a relief after the humid streets of Cartagena. Some reviews mention a packed bus, so don’t expect luxury, but the ride is direct and efficient.

First Stop: Fuerte de San Fernando de Bocachica

Your first taste of history is Bocachica Fort, where you’ll enjoy panoramic views and a brief history of this colonial fortress. It’s a quick 45-minute stop with admission included, offering a photo opportunity and a chance to stretch your legs before heading further out.

Second Stop: Rosario Islands Introduction

Next, you’ll cruise into the Islas de Rosario, exploring the different islands and beaches. This part lasts about an hour, and it’s a good time to get your bearings and feel the island vibe. The scenery here is stunning, with turquoise waters and white sands. Several reviewers appreciated the informative guides who shared stories about the islands, making it more than just a pretty view.

Isla Grande & the Sunken Plane Wreck

The highlight for many snorkelers is the sunken plane on Isla Grande. You’ll stop here for about an hour, with admission included, to snorkel over the wreck and see colorful fish and coral. Multiple reviews rave about this site—“neat to see the plane,” and “beautiful fish and coral”—making it a memorable underwater snapshot. Expect to spend some time floating and exploring, although some find the water wavier and more challenging than expected.

Snorkeling at San Martín de Pajarales

Another stop on Isla Grande is a natural coral pool—a perfect spot for snorkeling in calmer waters. The entrance is free, and many say it’s a peaceful place to relax and observe marine life. It’s a chance to see the marine environment without the crowds or noise of party islands.

Islas de Los Pajarales & Optional Activities

This stop is flexible. You can enter the oceanarium—which is paid separately—or snorkel around the coral reefs. Alternatively, you can stay on the beach and soak up the sun. Among reviews, some mention this as "a little too long of a wait," but others enjoyed the chance to relax.

Cholón: The Party Island

One of the most lively spots is Cholón, a party island famous for boats, loud music, and youth vibes. Here, you’ll indulge in a shrimp cocktail and observe the lively scene. It’s an energetic contrast to the tranquil beaches, and many travelers find it fun and vibrant. But some mention it’s "not family-friendly" and “dirty,” so if you’re seeking serenity, this might not be your favorite stop.

Playa Agua Azul & Playa Blanca

Next, you’ll visit Playa Agua Azul, a quieter, scenic beach perfect for unwinding for about an hour. Then, the main event: Playa Blanca. This white-sand beach offers stunning sunset views and is where most guests enjoy lunch. The food here is included in the tour, but reviews suggest it’s often served in small portions and in casual conditions—some travelers appreciate it, others find it underwhelming.

The Highlight: Plankton and Night Swim

The bioluminescent plankton activity caps off the day. After a long afternoon, you’ll take a boat to Isla Baru for around two hours to see the glowing organisms. Many reviews describe this as “cool” and “unique,” though some mention the long wait—sometimes up to four hours—involving a boat ride that can be bumpy and dark. The glow is more impressive if the weather is clear, so be prepared for a late night.

What We Like and What to Consider

The tour’s strengths lie in its variety and natural beauty. Visiting historic forts, snorkeling over a sunken plane, and floating among bioluminescent plankton are genuinely memorable experiences. The guides are often praised for their friendliness and knowledge, making the long day more manageable.

However, the downsides include long waits—sometimes multiple hours—and inconsistent organization, which can lead to some confusion or feeling rushed. The weather can also impact the experience, especially during the plankton activity or boat rides. Some travelers have found the food portions small and the beach stops crowded or not as pristine as hoped.

Value for Money

While $120 seems reasonable for a full day of tours, snorkeling gear is limited to masks, and some feel the snorkeling options are not as comprehensive as expected. The lunch is included but often basic, and drinks are not provided—expect to pay extra for alcohol or additional snacks. The group size is capped at 22, which helps keep things intimate despite some reports of crowded boats.

Who Is This Tour Best For?

This trip is ideal for adventurous travelers who want a packed day of activities, enjoy snorkeling and marine life, and don’t mind some unpredictability. It’s suitable for young groups, couples, or families with kids who are comfortable with long days and casual conditions. If you’re seeking a more relaxed experience, or highly-organized itinerary, you might want to look elsewhere.

Final Thoughts

This tour offers a comprehensive look at the Rosario Islands, mixing history, marine adventures, and lively local culture. You’ll get the chance to see the sunken plane wreck, enjoy snorkeling in vibrant waters, and experience the glow of bioluminescent plankton—a rare, magical sight. The guides, especially Hector and Giuseppe, often receive praise for their enthusiasm and knowledge, making the long day more engaging.

That said, it’s not without its flaws. Long waits, weather dependence, and some inconsistent organization mean you need to be flexible and prepared. If you love beach days, underwater exploring, and lively island scenes, this trip could be a highlight of your Cartagena stay. But if you prefer a more relaxed, well-paced experience, consider other options or plan to bring plenty of snacks and patience.

Frequently Asked Questions

Is pickup included in the tour?
Yes, hotel pickup is available from Cartagena, including areas near the Walled City and Getsemani. You should confirm your pickup location upon booking.

What is the duration of the tour?
The total experience lasts approximately 12 hours, starting early around 8:00 am and returning late in the evening, depending on weather and activities.

Are snorkeling masks provided?
Yes, snorkeling equipment including masks is provided. However, some reviews mention that only masks were available, with no breathing tubes, which may limit comfort for some.

What about lunch and snacks?
Lunch and snacks are included in the tour. Some travelers say the lunch is simple and portions small, so consider bringing extra snacks if you’re hungry.

Can I see the bioluminescent plankton?
Yes, the tour culminates with a chance to see glowing plankton in the dark. The experience is described as “cool,” but the visibility depends on weather conditions.

Is the tour suitable for families?
Most reviews suggest it’s suitable for families with kids comfortable with long days and boat rides. But note the party atmosphere at Cholón may not suit children or those seeking tranquility.

How is the weather?
The tour is weather-dependent. Rain or rough seas can affect snorkeling, boat rides, and the plankton viewing. Be prepared for a long day outdoors—pack sunscreen, hats, and rain gear if needed.

Whether you’re after underwater sights, cultural insights, or just a day soaking in some of Colombia’s best beaches, this Rosario Islands tour offers a lively, varied experience. Just keep your expectations flexible, pack snacks, and get ready for a day full of natural beauty and lively island life.