Dive Site: Guadalupe Island

About Guadalupe Island

Guadalupe Island, a remote volcanic outpost situated approximately 240 kilometers off the Pacific coast of Baja California, was renowned as the world's premier destination for great white shark encounters. This island served as a critical habitat where over 300 individually identified great white sharks gathered annually. Its appeal stemmed from the consistent shark sightings and the remarkably clear blue waters, with visibility often reaching 30 to 45 meters, far surpassing other great white shark destinations globally. The nutrient-rich California Current supports a thriving ecosystem, attracting various prey species that sustain the sharks, particularly Guadalupe fur seals and elephant seals which breed here. Dive experiences at Guadalupe were exclusively cage-based, focusing on observing great whites in their natural environment. Two types of cages were typically employed: surface cages, which floated at the stern of liveaboard vessels, and submersible cages, lowered to depths of up to 9 meters for certified divers. Both types utilized surface-supplied air (hookah systems), eliminating the need for traditional scuba gear or fins within the cages. Divers could spend extended periods observing the sharks, which were attracted to the boats using lures and chum, ensuring frequent and close interactions. The diving season historically ran from July to November, with juvenile male sharks dominating the early part of the season, followed by the arrival of larger female sharks in October and November. These massive females, some over 5 meters long, were a particular highlight for many divers. The encounters were not merely about observation but also about witnessing natural behaviors, with sharks sometimes striking lures or breaching the surface. However, in January 2023, the Mexican government made a permanent decision to close Guadalupe Island to all tourism and commercial activities, including shark cage diving. This closure was enacted under a renewed biosphere r

Dive site facts: Guadalupe Island

Depth

0-9 m (cages)

Typical dive

Surface to 9 m, 2-hour shifts

Current

None (at cage sites)

Visibility

30-45 m

Water temperature

19-22 °C

Entry

Cage entry from liveaboard

Level

Beginner to Advanced (no certification for surface cage)

Dive type

Great white shark cage diving

Night dive

Not applicable

Region / port

Baja California, Pacific Mexico

Coordinates

29.0333, -118.2833

Conditions & Currents

At Guadalupe Island, currents were generally negligible around the anchored liveaboard vessels and cage locations. Cages were stationary, allowing for stable observation conditions. The diving environment was primarily blue water, with no significant topographical features to influence strong currents.

Marine life & sighting chances

Great white shark

July-November · common

Guadalupe fur seal

occasional

Northern elephant seal

occasional

California sea lion

occasional

Yellowfin tuna

occasional

Mako shark

rare

Blue shark

rare

Dive profile & how the dive runs

Dive experiences at Guadalupe Island primarily involved cage diving, where divers entered either surface or submersible cages directly from a liveaboard vessel. Surface cages were positioned at the stern of the boat, floating at the waterline, with divers breathing surface-supplied air (hookah). No traditional scuba equipment or fins were used in these cages, and no certification was required. Submersible cages, for certified divers, were lowered to a depth of 9 meters. Divers in these deeper cages also used hookah systems and regulators to observe great white sharks at eye level as they naturally patrolled the area. The cages served as observation platforms, so there was no swimming or specific route. Turn points were determined by observation time or shark activity, and safety stops were not applicable in the traditional sense due to the controlled cage environment and surface-supplied air. Encounters lasted for scheduled shifts, typically two hours, with multiple sessions offered daily.

Underwater photography

Guadalupe Island offered prime opportunities for great white shark photography due to its exceptional visibility and frequent encounters. For surface cage photographers, a wide-angle lens (e.g., 10-17mm or similar fisheye) was ideal for capturing the entire shark and its imposing presence. Strobes were beneficial, even in clear water, to bring out color and detail on the sharks and to combat any backscatter from particulate matter. Given the close proximity and predictable behavior of sharks around the cages, rapid-fire shooting was often possible. For those in submersible cages at 9 meters, similar wide-angle setups were recommended, as sharks often approached very close. Maintain good buoyancy control within the cage to avoid contact with the cage structure or other divers. Remember to keep all camera equipment, including lenses and ports, safely within the confines of the cage for both diver and shark safety, as per regulations. Observing proper etiquette, such as avoiding sudden movements, contributed to more natural interactions.

Combine with nearby dive sites

• Roca Partida

  Known for hammerhead schools and manta rays, accessible via liveaboard as part of a Revillagigedo itinerary.

• San Benedicto - El Cañón

  Offers encounters with Galapagos and silky sharks, also part of Revillagigedo itineraries.

• Socorro - Cabo Pearce

  Features opportunities for whale shark and dolphin sightings in the Revillagigedo Archipelago.

• Socorro Island - The Boiler

  Famous for interactions with giant Pacific manta rays.

Getting there & logistics

Access to Guadalupe Island for shark cage diving was exclusively via liveaboard vessels. Trips typically lasted 5 to 7 days, with most operators departing from Ensenada, Mexico, or San Diego, USA. The journey to the island involved a 240 km (150 mile) open ocean crossing, which could be smooth or rough, making seasickness medication advisable. Once at the island, operations were conducted in calm, sheltered bays on the lee side. Permits were required for all activities within the protected marine park. While Guadalupe is currently closed to tourism, historical itineraries often combined it with other Pacific destinations like the Revillagigedo Archipelago for a broader big animal diving experience. Travelers would typically fly into international airports like San Diego (SAN) or Tijuana (TIJ) and transfer to the departure port.

Safety & environment

Safety at Guadalupe Island was paramount, with all diving conducted within custom-designed cages using surface-supplied air (hookah systems). Trained instructors, guides, and safety divers were present in all cages to assist clients and ensure the well-being of both divers and sharks. Each cage was equipped with backup scuba tanks in the event of a hookah system malfunction. Mexican park regulations strictly mandated that divers remain inside the cages, keeping all limbs and equipment within the barriers. Strict no-touching policies were enforced for sharks and other marine life. Divers were advised to wear a 7mm wetsuit, hood, boots, and gloves due to water temperatures of 19-22°C. A weight harness of 40-50 lbs was commonly used. Although incidents were rare, the nearest recompression chamber would have been on the mainland in Mexico, requiring a lengthy evacuation by sea or air. Comprehensive dive insurance, including evacuation coverage, was therefore highly recommended for all participants. Avoidance of sun lotion and other contaminants was also a rule to protect the pristine waters.

Who it suits — and who it doesn't

FAQ

Guadalupe Island FAQ

Liveaboards diving Guadalupe Island

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

Nautilus Explorer

Mexico

25 guests44.8 m

$336/day

Valentina

Mexico

20 guests38.1 m

$430/day

Rocio del Mar

Mexico

20 guests33.5 m

$392/day

Nautilus Under Sea

Mexico

19 guests32 m

$261/day

Nautilus Belle Amie

Mexico

32 guests44.8 m

$323/day

Quino del Mar

Mexico

20 guests36 m

$377/day

Nautilus Gallant Lady

Mexico

12 guests35.36 m

$332/day