Before visiting Cayo Acuario, it’s important to be prepared for a natural and eco-friendly experience. This small, protected islet has no large facilities, only a few food stalls offering fresh seafood and drinks. The shallow, crystal-clear waters are perfect for snorkeling, with plenty of tropical fish and stingrays visible beneath the surface. Since some areas have rocks and coral, water shoes are recommended for comfort. Payments on the cay are cash-only, and there is a small entrance fee to support conservation efforts. The weather can impact conditions, so checking forecasts before your trip is advised, especially since windy days can cause rougher seas. There is very little shade, so bringing sunscreen, a hat, and sunglasses is essential. For a more peaceful experience, it’s best to arrive early in the morning before the crowds.

The only way to reach Cayo Acuario is by boat from San Andrés Island, with the journey taking around 10 to 15 minutes. Boats leave from Spratt Bight Beach and other main docks throughout the day, usually as part of organized tours or round-trip transfers. Tickets can be booked at local tour offices or directly at the docks. The boat ride is generally smooth, but it’s always a good idea to check weather conditions, as rough seas can make the trip less comfortable. Since Cayo Acuario is a popular destination, boats depart frequently, especially in the morning.

Cayo Acuario is open year-round, but the best time to visit is from December to April, when the weather is dry, and the sea is calm. The cay can get crowded in the afternoon, so arriving early in the morning ensures a more peaceful experience. Weekends and holidays tend to attract more visitors, making weekdays the best choice for those looking to enjoy the cay without too many people. Avoid visiting on stormy or windy days, as strong currents can affect swimming conditions and make the boat ride rougher.

Many tour operators in San Andrés offer half-day trips to Cayo Acuario, often combined with a visit to Haynes Cay. Some tours include snorkeling gear and guided experiences to explore the marine ecosystem. For those wanting to explore more, full-day trips are available, often including stops at Johnny Cay, the Mangroves of Old Point National Park, or Rocky Cay. Whether you’re looking for a relaxing swim or a snorkeling adventure, Cayo Acuario is one of the top places to visit during your stay on San Andrés Island.