Dive Site: Mosquera Island

About Mosquera Island

Mosquera Island is a unique dive site in the Galápagos Marine Reserve, located between Seymour and Baltra islands. This small, volcanic islet, primarily a sandbank, was formed by volcanic uplift and has accumulated sand from strong currents. It offers divers an easy yet spectacular experience, contrasting with some of the more challenging sites in the archipelago. Its relatively shallow depths and diverse marine ecosystem make it a popular spot for both new and experienced divers. The topography features a sandy bottom at depths of 15-18 meters, where garden eels are frequently observed. An underwater wall extends from the shallows into deeper sections, providing varied habitats. The island is particularly famous for its large colony of Galápagos sea lions, whose playful interactions are a highlight of any visit. Occasional sightings of orcas have been reported, drawn by the abundant sea lion population. The waters surrounding Mosquera are rich in nutrients due to strong currents, attracting a wide array of marine life year-round. Divers can expect to see various shark species, including hammerheads, blacktip, and whitetip reef sharks, as well as several types of rays and sea turtles. While the marine life is consistently present, the specific abundance of certain pelagic species can vary with the seasons. Typically combined with dives around North Seymour, Mosquera offers a memorable experience for those seeking encounters with iconic Galápagos marine creatures in a dynamic underwater environment. The site is accessible through licensed tour operators and requires permits as it lies within protected waters.

Dive site facts: Mosquera Island

Depth

6–27 m

Current

Moderate to strong

Visibility

12–15 m

Entry

Boat only

Level

Advanced recommended

Dive type

Pelagic, drift

Region / port

Galápagos, Ecuador

Coordinates

-0.3833, -90.2667

Conditions & Currents

Currents at Mosquera Island range from moderate to strong, influenced by its location in the Canal del Norte between Baltra and North Seymour. These powerful currents are responsible for bringing nutrient-rich waters that attract the site's abundant pelagic life. Divers should be prepared for drift diving conditions and possess solid current awareness and water skills. Visibility and depth can fluctuate significantly depending on the tides and current strength, making local operator knowledge crucial for planning. Entry techniques may sometimes involve negative entry to quickly descend below surface currents. While not always extreme, divers should anticipate dynamic conditions.

Marine life & sighting chances

Dive profile & how the dive runs

Diving at Mosquera typically involves a boat entry, often combined with a negative entry to quickly descend past any surface currents. The site features a sandy bottom between 15-18 meters, where divers can observe garden eels and various reef fish. A key part of the dive involves exploring an underwater wall that slopes from shallower areas into deeper water, providing an excellent opportunity to spot pelagic species. The dive often follows a drift profile due to the moderate to strong currents. Turnaround points are determined by air consumption and current conditions, ensuring divers remain within safe limits. Safety stops are conducted in the calmer, shallower sections of the dive site, usually with the support of the dive boat.

Underwater photography

Mosquera Island offers fantastic opportunities for wide-angle photography, especially to capture the large schools of hammerheads, other sharks, and the playful Galápagos sea lions. A fisheye or wide-angle lens will be ideal for these dynamic encounters. Be prepared for potentially strong currents; good buoyancy control is essential to hold position for shots without disturbing the sandy bottom. Natural light can be effective in the clearer visibility, but strobes will enhance color and detail, particularly for subjects further away or in deeper sections of the wall. When photographing sea lions, maintain a respectful distance and allow them to approach if they are curious, capturing their natural behavior without interference. For macro subjects like garden eels, a macro lens can be useful on the sandy patches, but the site's primary draw is its pelagic action.

Combine with nearby dive sites

• North Seymour

  Often combined with Mosquera in dive itineraries

• Daphne Minor

  Offers snorkeling and panga rides near colorful underwater organisms

• Daphne Major

  Excellent for snorkeling and observing seabirds

• Gordon Rocks

  Known for strong currents and abundant hammerheads, requiring advanced certification

• Kicker Rock (León Dormido)

  Popular for shark and sea lion encounters, good for all levels

Getting there & logistics

Access to Mosquera Island usually begins with flights into Baltra Island (GPS airport), which is the primary airport for the Galápagos. From there, divers typically transfer to a liveaboard cruise or a day-trip boat operating from the Itabaca Channel. Mosquera is located approximately 25 minutes north of Baltra and is often included in itineraries that combine it with dives around North Seymour. All diving in the Galápagos Marine Reserve requires permits and must be done through licensed tour operators. Trip lengths vary, but Mosquera is commonly part of multi-day liveaboard excursions exploring the central islands.

Safety & environment

Diving at Mosquera requires adherence to strict safety protocols due to the presence of moderate to strong currents. Divers should always carry valid dive insurance, including coverage for evacuation and hyperbaric treatment. The nearest recompression chamber is located in Puerto Ayora on Santa Cruz Island. Emergency procedures are well-established through licensed operators, but remote evacuations can still be complex and time-consuming. Divers must maintain excellent buoyancy, monitor air consumption closely, and be proficient in drift diving techniques. Respect for marine life and park regulations is paramount; touching animals or corals is strictly prohibited. Listen carefully to dive briefings and follow your guide's instructions at all times.

Who it suits — and who it doesn't

FAQ

Mosquera Island FAQ

Liveaboards diving Mosquera Island

These liveaboards may visit Mosquera Island on selected itineraries — the exact dive sites depend on departure, weather and conditions.

Galapagos Aggressor III

Galápagos

16 guests30.5 m

$913/day

Galapagos Sky

Galápagos

16 guests

$937/day

Galapagos Master

Galápagos

16 guests

$669/day

Humboldt Explorer

Galápagos

16 guests

$612/day

Tiburon Explorer

Galápagos

16 guests

$924/day

Calipso

Galápagos

16 guests

$819/day