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Decameron Aquarium

San Andres, Colombia
4.2(7,885 reviews)
Family

Reopening Date & Status

Decameron Aquarium is temporarily closed — structural repairs (no reopening date announced).

Email me when it reopens

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Decameron Aquarium is a family-friendly all-inclusive resort in San Andres, Colombia with 297 rooms. Amenities include Beach, Buffet Dining, Diving, Fishing and Snorkeling. Travelers rate it 4.2/5 across 7,885 Google reviews.

What travelers said before it closed

Traveler Insights

Pros

  • +Exceptional architecture with circular towers at Punta Hansa offering panoramic Caribbean Sea views that genuinely compete with any resort in the region
  • +A long wooden dock leads directly to a natural sea pool and aquatic platform ideal for snorkeling - the underwater visibility in San Andres is world-class
  • +San Andres Island itself is one of Colombia's most beautiful destinations, with turquoise water in multiple distinct shades that earn it the 'Seven Colors Sea' designation
  • +Six restaurants offering everything from breakfast buffets to fresh Caribbean seafood, with a culinary range unusual for a mid-market all-inclusive

Cons

  • −Room decor is tired and worn - the accommodation quality is the property's weakest point relative to the spectacular setting
  • −Wi-Fi and in-room safes cost extra, which is a frustrating nickel-and-dime at an all-inclusive property where guests expect basic amenities to be covered
  • −No minibars in rooms, meaning guests who want a drink in their room need to go to a bar - inconvenient for a property this spread out
  • −Potable water is not available from the tap, and some guests report no bottled water provided in rooms as a matter of course

First, the essential update: Decameron Aquarium has been closed since September 24, 2025 and remains closed with no announced reopening date. An engineering study found structural anomalies - material degradation and corrosion in the building columns - serious enough that Decameron preventively evacuated around 200 occupied rooms and pulled the hotel from sale. Guests with confirmed reservations were offered relocation to other Decameron properties on San Andres or full refunds, and as of mid-2026 the chain's official site no longer lists Aquarium among its island hotels. Until repairs are complete and a reopening is announced, everything below describes the resort as it operated before the closure.

What made Aquarium worth watching for is one of the Caribbean's most genuinely spectacular settings. San Andres sits in Colombian waters where the sea displays itself in that impossible palette of turquoise shades - locally called the 'Sea of Seven Colors' - and the resort's circular tower architecture at Punta Hansa captured panoramic views from multiple angles, with a long dock extending into a natural sea pool for snorkeling in world-class visibility. The resort itself was a solid mid-market all-inclusive: genuinely warm, smiling staff, six restaurants with fresh Caribbean seafood as a strength, and included non-motorized water sports. The weak points were physical even before the closure - dated rooms, maintenance issues including leaks and odors in some units, and extra charges for Wi-Fi and safes - which puts the structural findings in a certain context.

If you had your heart set on Aquarium's setting, the destination is still fully available: Decameron's other San Andres properties - Isleno (on the iconic Spratt Bight beach), Los Delfines, Marazul, Maryland, and San Luis - remain open, and the island experience that made Aquarium appealing (Johnny Cay excursions, the Seaflower Biosphere Reserve snorkeling, cheap local seafood and rum, golf-cart loops of the island) doesn't depend on this one hotel. Keep an eye on Decameron's official site for reopening news before making any plans around this specific property.

Common Questions

Is the snorkeling really that good from the resort's dock?
Yes - San Andres has legitimately world-class Caribbean water clarity, and the resort's dock and natural sea pool provide direct access to good snorkeling without needing to book a tour or take a boat. The reef systems around San Andres Island are part of the UNESCO-designated Seaflower Biosphere Reserve, which has helped protect water quality and marine biodiversity. For even better snorkeling and diving, organized excursions to nearby dive sites and Johnny Cay Park offer the island's best underwater experiences.
What is the 'Seven Colors Sea' and can you actually see it?
The Sea of Seven Colors (Mar de los Siete Colores) refers to the gradient of turquoise shades visible in the shallow waters around San Andres Island, caused by variations in water depth and the white sand bottom. It's real and genuinely stunning - one of those travel experiences that actually matches the photographs. The best viewing is from a boat tour around the island or from the elevated circular towers of the Decameron Aquarium itself. Several reviewers specifically mention being stunned by the water color as their first impression of the destination.
Is San Andres Island easy to get to for international travelers?
San Andres is harder to reach than Caribbean destinations in Mexico or the Dominican Republic, which matters for travel planning. Flights route primarily through Colombian mainland cities (Bogota, Medellin, Cartagena), meaning most international travelers will have at least one connection. Flight time from the US East Coast is roughly 5-7 hours with connections. Colombians and visitors to Colombia often combine San Andres with a mainland Colombia trip. The airport is only 10 minutes from the resort, so once you land the transfer is easy.
How does Decameron Aquarium compare to other Decameron properties?
This question is currently moot: Aquarium has been closed since September 2025 for structural repairs with no reopening date, so it can't be booked. Decameron's open San Andres properties are Isleno, Los Delfines, Marazul, Maryland, and San Luis - Isleno is the usual recommendation for its location on Spratt Bight beach, Maryland for food and small-property service, and Los Delfines for budget. Aquarium's advantage within the chain was always its Punta Hansa setting and sea-pool dock; if it reopens, that calculus returns.
What should I do off-resort in San Andres?
San Andres rewards exploration beyond the resort. Johnny Cay National Park - a small coral island offshore - is the most visited excursion with its white sand and clear water, accessed by a short boat ride. The Mangrove Old Regional Park offers a nature-focused alternative. San Andres town itself has a distinctly Afro-Caribbean culture that reflects the island's Raizal heritage, with local seafood restaurants serving crab, lobster, and rondon (a traditional coconut-based stew) at prices far below what the resort charges. Renting a golf cart to circle the island's 27-kilometer perimeter is a popular and cheap way to see the color gradient from multiple angles.
Is Decameron Aquarium open right now?
No. The hotel closed preventively on September 24, 2025 after an engineering study found structural anomalies - degradation and corrosion in the building's columns - that could compromise its stability, and roughly 200 occupied rooms were evacuated. As of July 2026 there is no announced reopening date, and Decameron's official site no longer lists Aquarium among its San Andres hotels. Guests who held reservations were offered relocation to other Decameron properties on the island or full refunds. Check Decameron's official channels for current status before planning a trip around this property.

What's nearby

More things to do (12)
  • Muelle Casa de la Cultura · marina10 min walk · 0.5 mi
  • Spratt Bight Beach · beach4 min drive · 1.2 mi
  • Green Beach · beach6 min drive · 3.7 mi
  • Cocoplum Bay · beach6 min drive · 4.0 mi
  • Mirador La Loma · viewpoint6 min drive · 3.5 mi
  • San Andrés Botanical Garden · nature7 min drive · 4.8 mi
  • Sound Bay (San Luis) · beach8 min drive · 5.8 mi
  • Morgan's Cave · historic site10 min drive · 6.7 mi
  • West View · nature10 min drive · 6.8 mi
  • South End beach · beach11 min drive · 8.8 mi
  • La Piscinita · nature11 min drive · 7.7 mi
  • Hoyo Soplador · nature12 min drive · 9.0 mi

Amenities

Windsurfing
Fishing
Diving
Snorkeling
Water Sports Rentals
Buffet Dining
Beach

Google Reviews★ 4.2 · 7,885 reviews

Rachel G.
9 months ago

“The resort is quite lovely and the staff is very helpful and friendly. We truly enjoyed the sun chairs on the dock and the kind staff, especially since we are still learning Spanish. Our food was delicious, especially at the seafood restaurant on t...”