Night Sport Fishing in Cartagena Bay: Catching Groupers and Weakfish in Urban Waters

Night Fishing in Cartagena Bay: The City's Best Kept Secret

When the sun hides behind the Castillo de San Felipe and the lights of the old city begin to twinkle on the water, Cartagena Bay transforms. Most tourists are dining in the Centro Histórico or sipping cocktails on the Wall, but a select group of locals and travelers know that the real action begins when night falls: sport night fishing.

We are not talking about the massive fishing tours that leave from la boquilla at 6 in the morning. This is something else. It is casting your line under the moon, feeling the sway of the boat while searching for groupers and weakfish that feed in the urban waters. In June 2026, this experience remains one of the most authentic and least exploited plans in Cartagena. Here I tell you everything you need to know to decide if you prefer to target a grouper or a weakfish, and how to do it safely.

Comparison Table: Grouper vs. Weakfish in Night Fishing

Before we get into details, here is a quick summary of the key differences between fishing for these two species in Cartagena Bay:

Analysis by Option: Grouper vs. Weakfish

Grouper Fishing in Cartagena Bay

The grouper, specifically the goliath grouper (Epinephelus itajara), is the trophy dreamed of by any sport fisherman in the Colombian Caribbean. It is a bottom fish that can reach impressive sizes and offers a legendary fight. In Cartagena Bay, groupers take refuge near rocky structures, sunken wrecks, and old docks. Night fishing is ideal because these predators come out to hunt when the light fades.

• Pure excitement: the fight can last 20–40 minutes, and the feeling of reeling in a 30-kilo grouper is indescribable.
• Emblematic species: catching a grouper in urban waters is an achievement few can boast about.
• Culinary value: although many fishermen practice catch and release, grouper is one of the finest fish for cooking (ceviche, garlic style, stewed).

Cons of fishing for grouper:

• Specialized equipment: you need heavy-action rods (30–50 pound test), robust reels, and a steel leader to prevent the fish from cutting the line with its teeth.
• High difficulty: not for beginners without a guide. Groupers hide in holes and can tangle the line in rocks.
• Limited season: between May and October, when rains muddy the water and groupers come closer to the coast.

Fun fact: Goliath groupers can live over 50 years and change sex from female to male when they reach a certain size. In Cartagena, there is an unwritten rule among local fishermen: if the grouper is too large (over 1.5 meters), it is released to preserve the species.

Weakfish Fishing in Cartagena Bay

The weakfish (Cynoscion spp.) is the queen of light night fishing in the bay. It is a silver, fast, and very feisty fish, but more manageable than the grouper. It moves in schools, meaning if you find a bank, you can have a night full of action. In the inner bay, near Muelle de los Pegasos and Isla de Tierra Bomba, weakfish are abundant.

• Accessible to all: with a medium rod (10–20 pounds) and artificial lures, anyone with some experience can be successful.
• Constant action: weakfish bite in succession if the school is active. You can catch 5–10 specimens in one night.
• Schedule versatility: from sunset to midnight, weakfish are on the move.

Cons of fishing for weakfish:

• Smaller size: although there are weakfish up to 10 kilos, common catches are 2–4 kilos. It is not a wall trophy.
• Less epic: the fight is exciting but shorter than with a grouper. Some expert fishermen consider it "entry-level fishing".
• Weather dependence: weakfish are sensitive to sudden changes in temperature and wind. A night with heavy swells can ruin the outing.

Fun fact: Weakfish emit sounds (like drums) using their swim bladder. Local fishermen use homemade hydrophones to detect the schools. It is a technique you won't see on tourist tours.

Best Night Fishing Spots in the Bay

Muelle de los Pegasos (Beginners)

Located in the heart of the Centro Histórico, in front of the Torre del Reloj, this dock is the ideal starting point for those who want to try night fishing without going too far. The waters here are calm and there is a good presence of small weakfish and snappers. It is common to see locals casting from the dock itself with simple rods. If you are a beginner, this is the place to learn. It is recommended to go between 6 pm and 9 pm. Access is public and free, but be careful with the crowds of tourists strolling through the area.

Isla de Manzanillo (Intermediate)

A 15-minute boat ride from Muelle de la Bodeguita, this island offers mixed bottoms (sand and rock) that attract both weakfish and young groupers. It is an intermediate spot: not as deep as Punta Canoas, but with enough structure for fish to hide. Here it is common to use live bait (sardines or shrimp) and wait for something big to bite. Ideal for small groups with a guide. Local boats charge around $150,000–$200,000 COP per hour (reference prices from June 2026).

Punta Canoas (Advanced)

At the southern end of the bay, near Isla de Barú, this is the most remote and productive spot for large groupers. The bottom is rocky with strong currents, and it is only recommended for experienced fishermen or those accompanied by a local guide like those from 'Cartagena Fishing Tours'. Fishing here is bottom fishing, with heavy sinkers and large bait (whole squid or crabs). The outing usually lasts 4–6 hours, from 8 pm to 1 am. Bring warm clothing, because at sea the night wind can be cold.

Equipment and Licenses: What You Need to Know

To fish in Cartagena Bay you need two things: proper equipment and a permit. Here are the details:

Basic equipment for night fishing

• Rod and reel: For weakfish, a 7–8 foot rod with medium action (10–20 lbs) is sufficient. For grouper, you need a heavy-action rod (30–50 lbs) with a low-profile or conventional reel.
• Headlamp: Indispensable. Free hands are key for handling the line and bait. Bring extra batteries.
• Life jacket: Mandatory on any vessel. The Port Authority conducts random checks.
• Bait: You can buy fresh squid at the fish market in Mercado de Bazurto (open until 5 pm, so go early) or frozen sardines at fishing stores in the Centro.

Where to rent equipment?

Several stores in the Centro Histórico offer equipment rentals. A reliable option is 'Pesca Cartagena' (near Parque del Centenario), which rents complete rods from $50,000 COP per day. You can also ask at the tourist docks, but make sure the equipment is in good condition before heading out.

Licenses and permits

The National Authority for Aquaculture and Fisheries (AUNAP) requires a sport fishing permit for foreigners and Colombians. It is processed online (www.aunap.gov.co) and costs around $30,000 COP for one day. If you book a tour with 'Cartagena Fishing Tours', they usually include the permit in the package. Do not risk fishing without a permit: fines can exceed $500,000 COP.

Safety in Night Fishing: Don't Risk It

Cartagena Bay is relatively safe for night navigation, but there are risks you should consider:

• Maritime conditions

Introduction to the topic

Night sport fishing in Cartagena Bay has become a popular activity for fishing enthusiasts seeking a unique experience under the stars. With a mix of urban lights and the calm of the sea, this activity offers not only the chance to catch groupers and weakfish, but also the opportunity to connect with local culture and enjoy the beautiful night view of the city.

Fishing in this environment is not just a hobby, but a tradition that has evolved over the years. Local fishermen have passed down techniques and secrets that enrich the experience, making nights on the bay a memorable moment for both experts and beginners.

If you decide to try night fishing in Cartagena, here are some practical tips:

• Proper equipment: Make sure to bring sturdy fishing rods and reels suitable for catching larger species, like groupers. Conditions in the bay can be unpredictable, so prepare your gear for any eventuality.
• Best times of year: Although you can fish year-round, the months from December to March usually offer better opportunities due to water temperature and species migration.
• Know the regulations: Inform yourself about local regulations and fishing seasons. Respecting the rules is crucial for the sustainability of the marine ecosystem.

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Analysis by option (pros and cons)

Night sport fishing in Cartagena Bay offers a unique experience, but like any activity, it has its pros and cons. Below are some aspects to consider before heading out to fish in these urban waters.

Pros

• Abundant Catch: The bay is home to various species like groupers and weakfish, increasing the chances of a good catch.
• Night Adventure: Fishing under the stars provides a magical atmosphere, different from daytime fishing. The city lights add a special charm.
• Local Community: It is an excellent opportunity to socialize with other local fishermen and share experiences and tips.

Cons

• Weather Conditions: Cartagena can be hot and humid, which can be uncomfortable. It is advisable to wear light clothing and insect repellent.
• Fishing Regulations: It is essential to be aware of local fishing regulations, including minimum sizes and seasons, to avoid penalties.
• Safety: Night fishing can present risks. It is advisable to go in a group and be alert to sea conditions and other boats.

With this information, fishermen can make informed decisions and enjoy a night fishing experience in Cartagena Bay that is both safe and rewarding.

Final verdict

Night sport fishing in Cartagena Bay offers a unique experience that combines the excitement of the catch with the vibrant atmosphere of the city. Catching groupers and weakfish in these urban waters is not only a sport, but also a way to connect with the local culture and marine biodiversity of the region. However, there are some aspects that fishermen should keep in mind to maximize their experience.

Best seasons to fish

The ideal season for night fishing in Cartagena extends from December to March. During these months, weather conditions are more favorable, and fish activity is higher. Additionally, the nights are cooler, making the experience more pleasant.

Recommended equipment

Use fast-action rods and reels with good line capacity. Lures that mimic the movement of small fish are effective. Do not forget to bring a powerful headlamp, as visibility is key to attracting fish and for your own safety.

Conservation and respect for the environment

Always remember to practice responsible fishing. If you decide to release the fish, do so carefully to ensure its survival. Also, respect local regulations on minimum sizes and catch limits, which helps maintain the health of marine ecosystems.

In summary, night fishing in Cartagena Bay is not only an exciting activity, but also a way to enjoy and respect the natural wealth of Colombia. With proper preparation and a responsible approach, you can have a memorable experience under the stars.