August 10, 2026
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Cerralvo Island
Cerralvo Island lies in the southern Sea of Cortez, off the coast of Baja California Sur, and is known among divers and naturalists as Jacques Cousteau Island. Deep underwater canyons meet strong ocean currents close to the island, pushing nutrient rich water to the surface and drawing in a wide range of pelagic species, from mobula rays and dolphins to migratory whales and, in season, orcas.
Indigo Safaris sells seasonal ocean safari and island glamping stays on Cerralvo Island, based aboard a fast boat by day and on a shore camp by night. Guests divide their time between guided wildlife excursions on the water and quieter days on the island itself, kayaking, snorkelling or simply relaxing on the beach between outings.
Tours from Cerralvo Island
The Cerralvo Island tours start with a transfer from Cabo San Lucas or La Paz airport for a night in La Paz, followed by four days of naturalist-guided ocean safaris with three nights of glamping on the island itself. It runs across April, May and June, when mobula ray aggregations are at their densest and the chance of orca encounters are highest.
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Where the Sea of Cortez concentrates its wildlife
Why Visit Cerralvo Island?
Cerralvo sits near the mouth of the Sea of Cortez, so much of what moves through these waters passes close to the island. The result is a stretch of ocean with a consistently high concentration of marine life, from resident dolphins and sea lions to seasonal whales and orcas.
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Seasonal orca sightings in the channel between Cerralvo Island and La Ventana, with permitted in-water encounters when conditions allow.
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Large aggregations of mobula rays passing through the Cerralvo channel between April and June.
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Resident pods of dolphins and colonies of California sea lions.
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Migratory blue, humpback and fin whales, along with occasional whale sharks.
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Zero-footprint island glamping, with a mothership anchored offshore for hot showers and power.
Orcas, mobula rays and the wildlife of the world’s aquarium.
Best Times to Visit Cerralvo Island
Jacques Cousteau described the Sea of Cortez as the world’s aquarium, and Cerralvo Island sits at one of its most productive points. Naturalist guides lead daily ocean safaris aboard a fast boat, watching for whatever the ocean brings that day, with snorkelling opportunities whenever conditions and animal behaviour allow.
Between April and June, tens of thousands of mobula rays migrate through the channel between Cerralvo Island and the Baja peninsula, forming large aggregations that in turn draw in orcas hunting nearby. In-water encounters with orcas are governed by Mexican marine wildlife regulations introduced in 2025, which set out when and how guests may enter the water with them within a defined zone. Dolphins and California sea lions are a near-constant presence, and guests may also see migratory whales, whale sharks and reef fish around the island.
All wildlife encounters are led by naturalist guides operating within these regulations, and sightings are never guaranteed. Guides read conditions and animal behaviour in real time, and what a given day brings is ultimately down to the animals themselves.
From January to November, marine biologists conduct observation flights over the Sea of Cortez and Magdalena Bay to support science and conservation efforts, and to better understand and appreciate this remarkable region we work in. Multiple flights run every week giving sighting information to the crew.
A short window built around the mobula migration.
Best Times to Visit Cerralvo Island
Cerralvo Island is offered from April to June, the window when mobula ray numbers are at their highest and orca sightings are most consistent.
- 🌿 April to June:
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Peak mobula ray migration through the Cerralvo channel.
- 🌿 April onward:
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Prime orca season in the Sea of Cortez, though sightings are never guaranteed.
- 🌿 March to May
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Water temperatures rise from the high teens Celsius in March to the low twenties by May, warm enough for extended snorkelling with a wetsuit.
A night in La Paz, then glamping on the island.
Accommodation
A Cerralvo Island stay opens and closes with a night at a hotel in La Paz, based at Hotel Catedral (or the H-Blue Hotel, depending on availability), both well positioned close to the city’s Malecón waterfront promenade, with rooftop pools and comfortable, well-equipped rooms.
The main stay is spent at a zero-footprint glamping camp set directly on the shore of Cerralvo Island. Each tent has flow-through ventilation, a double-reflecting fly shade and battery-powered swamp coolers to offset the Baja heat, along with a real bed and a private en-suite bathroom. Generators are not permitted on the island under national park rules, so lighting and charging in camp run on solar power instead, while a fully equipped mothership anchored offshore provides hot showers, air conditioning and round-the-clock power for guests who want it.
Every morning begins on the water during this wild Sea of Cortez glamping experience.
Daily safaris take you offshore in search of whatever the ocean has to offer — and Cerralvo rarely holds back. Snorkelling opportunities arise throughout the day, from drifting through mobula ray aggregations to exploring rocky reefs alive with fish.
Back at base, this deserted, uninhabited island is yours to explore at your own pace. A beautiful reef sits right off the beach in front of camp, calling for a swim or a freedive, or, if you brought your gear, a scuba dive. Feel encouraged to kayak or paddleboard along the undisturbed coastline, join one of our naturalists for a hike, or simply watch the seabirds work the surface.
In the evening, unwind with marine life presentations from our naturalists, book a relaxing massage, or simply take in the sunset with a freshly prepared mojito in hand, before settling in under a star-filled sky.
What to know before you travel.
Travel Essentials & Tips
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Getting there: fly into Los Cabos (SJD) or La Paz (LAP), both connected to the group's La Paz base by scheduled transfer.
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Age and fitness: the minimum age is 12, and all under-18s must travel with a parent or guardian.
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Documents: a passport valid for six months from entry is required, along with a Mexican FMM tourist permit for non-Mexican nationals; check visa requirements before you travel.
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Insurance: medical and evacuation insurance is required for all guests, along with diving insurance for anyone taking the optional dives.
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Packing: bring a wetsuit or hooded vest for snorkelling and a warm layer for cooler evenings on the water; reef-safe sunscreen is provided in camp.
What guests ask before they travel.
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Spring through early summer is prime orca season in the Sea of Cortez, and Indigo Safaris’ Cerralvo Island departures run across April, May and June to make the most of it. Orcas cover long distances daily, so sightings are frequent in some weeks and quieter in others.
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In-water encounters with orcas are only possible within a permitted zone covering the channel between Cerralvo Island and La Ventana, under Mexican marine wildlife regulations introduced in 2025, and only when the orcas are feeding on small prey rather than hunting, transiting or resting. Naturalist guides make the call in real time and always prioritise the animals’ welfare.
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Between April and June, thousands of mobula rays migrate through the channel between Cerralvo Island and the Baja peninsula, forming large aggregations that can be observed while snorkelling. The gathering also draws in orcas hunting nearby.
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No. The trip is built around snorkelling and freediving, suitable for all comfort levels in the water. Certified divers holding an Open Water qualification have the option of unguided buddy dives on the house reef.
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The camp is a zero-footprint installation set directly on the beach, with individual tents fitted with real beds, private en-suite bathrooms and battery-powered cooling, plus solar-powered lighting and charging. A fully equipped mothership anchored offshore provides hot showers, air conditioning and round-the-clock power for guests who need them.
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The from US$1,995 per person sharing rate includes four nights’ accommodation (one night in La Paz and three nights glamping), scheduled transfers, four days of naturalist-guided ocean safaris, snorkelling equipment, all meals, and one complimentary in-water massage per guest. Alcoholic drinks, gratuities and the US$35 port fee are excluded.
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Guests must be at least 12 years old, and anyone under 18 must travel with a parent or guardian, which makes this a good option for multi-generational families travelling with older children or teenagers.
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Guests fly into either Los Cabos (SJD) or La Paz (LAP) and are transferred to the group’s La Paz base by road, before boarding a fast boat to reach Cerralvo Island itself.
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No operator can guarantee sightings of wild animals, and Cerralvo Island is no exception. Naturalist guides and boat captains draw on years of experience in these waters to put guests in the best possible position, but the animals themselves decide what a given day brings.
Plan Your Cerralvo Island Stay
From mobula ray aggregations to quiet evenings under the stars, Indigo Safaris will help plan a Cerralvo Island stay to suit your dates. Start Planning or contact us to speak with a safari expert.
Stories from the Blog
Our blog carries further reading on marine wildlife, ocean safaris and practical planning, alongside stories from across our other destinations. Recent posts are pulled through automatically below; visit the Indigo Safaris blog to browse the full archive.
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