Dive Site: Isabela - Tortuga Island

About Isabela - Tortuga Island

Tortuga Island, also known as Isla Tortuga, is a distinctive crescent-shaped islet formed from the rim of an extinct volcano, located southeast of Puerto Villamil on Isabela Island. This site stands out as the primary dive destination accessible to land-based visitors staying in Puerto Villamil, offering an unparalleled opportunity to experience the rich underwater biodiversity of the Galápagos without requiring a liveaboard. The topography features a deep vertical wall covered in an abundance of corals, sponges, and black coral, creating a vibrant backdrop for marine encounters. Depths typically range from 18 to 20 meters, making it suitable for experienced divers who can manage current conditions. The strong currents in this area contribute to a nutrient-rich environment, attracting a diverse range of pelagic and reef species. Divers can frequently spot large schools of hammerhead sharks, majestic manta rays, and green sea turtles. The cool season from June to October brings an influx of larger pelagic species, including whale sharks, although sightings at Tortuga Island specifically are less frequent than at more northern sites. Year-round residents include playful sea lions and various reef fish. The unique blend of volcanic structure and marine life makes Tortuga Island a captivating dive for those seeking intense action and pristine environments. Dive tours typically involve two tanks, often incorporating drift diving along the impressive wall. The site is known for its relatively easy descent, where divers can let the current guide them along the reef, observing the abundant life. Given the strong currents and potential for colder water, proper equipment and a good level of experience are essential for an enjoyable and safe dive.

Dive site facts: Isabela - Tortuga Island

Depth

18–20 m

Typical dive

18–20 m, 50–60 min

Current

Moderate to strong

Visibility

10–20 m

Water temperature

18–24°C

Entry

Tender / negative entry

Level

Advanced recommended, current experience essential

Dive type

Drift, wall, pelagic encounters

Night dive

Not permitted

Region / port

Isabela Island, Galápagos

Coordinates

-0.958, -91.145

Conditions & Currents

Tortuga Island is characterized by moderate to strong currents, typical of many Galápagos dive sites, which necessitate drift diving techniques. These currents are a primary factor in attracting the rich marine life, carrying abundant nutrients through the water column. Divers should be prepared for potential strong pulls and practice good buoyancy control to avoid contact with the reef. Entry is often a negative descent to quickly reach the desired depth and drift along the wall with the current. Surface marker buoys and personal locator devices are highly recommended for safety due to the strong currents and the possibility of being separated from the group. Visibility can fluctuate with the changing seasons and currents, but generally remains good.

Marine life & sighting chances

Hammerhead shark

Year-round, more frequent Dec-May · common

Manta ray

Year-round, more frequent Dec-May · common

Green sea turtle

Year-round · common

Galápagos shark

Year-round · occasional

Sea lion

Year-round · common

Whale shark

June-December (less common at this site) · rare

Moray eel

Year-round · occasional

Lobster

Year-round · occasional

Tropical fish species

Year-round · common

Dive profile & how the dive runs

Dives at Tortuga Island typically begin with a tender boat ride from Puerto Villamil to the site, followed by a negative entry to quickly descend and avoid being swept away by surface currents. The usual depth ranges from 18 to 20 meters, drifting along the crescent-shaped wall of the extinct volcano crater. Divers often follow the contours of the reef, observing hammerhead sharks and manta rays in the blue, while green sea turtles and various reef fish are found closer to the wall. The dive usually progresses as a continuous drift, with the current guiding divers along the abundant marine life. The turn point is determined by air consumption and current conditions, leading to a slow ascent for a safety stop, often in the calmer areas before surfacing where the dive boat will pick up divers.

Underwater photography

Capturing the dynamic action at Tortuga Island requires consideration for the strong currents and pelagic encounters. A wide-angle lens is essential for photographing schools of hammerheads and large manta rays in the blue water. Due to varying light conditions with depth and current, external strobes are highly recommended to bring out the vibrant colors of the corals, sponges, and black coral on the walls. Practice good buoyancy control to maintain position without touching the delicate reef, especially during drift dives. Be ready for fast-moving subjects and aim for clear shots of the impressive pelagic species that frequent this rich environment.

Combine with nearby dive sites

• Punta Vicente Roca

  Known for mola molas, seahorses, and feeding frenzies due to cold currents.

• Cape Douglas - Fernandina

  Famous for marine iguanas feeding underwater.

• Roca Redonda

  An underwater volcano known for hammerheads and Galápagos sharks.

• Cabo Marshall

  A wall dive on Isabela's northeastern coast with moderate to heavy current.

Getting there & logistics

Access to Tortuga Island is primarily from Puerto Villamil on Isabela Island. Divers typically fly into Baltra Airport (GPS) and then take inter-island flights or speedboats to Isabela. Day trips from Puerto Villamil are the most common way to dive this site, usually involving a 45-minute speedboat ride. Most tours are two-tank dives, lasting a full morning or afternoon. Permits and national park fees are typically included in tour costs. This site is unique for being accessible to land-based divers, whereas many other premier Galápagos sites require liveaboard itineraries. Booking with local dive centers in Puerto Villamil is necessary, and it is advisable to book at least one day in advance.

Safety & environment

Diving in the Galápagos, especially at sites like Tortuga Island with strong currents, demands adherence to strict safety protocols. Divers must be PADI or SSI certified, and advanced certification with experience in currents is highly recommended. Always dive with a surface marker buoy (SMB) and a personal locator device (PLB) or EPIRB, as currents can lead to separation from the group, although tour companies usually provide them. The nearest recompression chamber is located in Puerto Ayora on Santa Cruz Island, requiring significant evacuation time in case of a dive emergency. Comprehensive dive insurance covering evacuation and hyperbaric treatment is mandatory. Always follow your dive guide's instructions, especially regarding negative entries and drift diving procedures.

Who it suits — and who it doesn't

FAQ

Isabela - Tortuga Island FAQ

Liveaboards diving Isabela - Tortuga Island

These liveaboards may visit Isabela - Tortuga 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